1. Paracypris polita. G. O. Sars.-Seen from the side, the capace is elongated, siliquose or sub-triangalar; greatest height at the anterior third, and equal to more than 1% of the length. Anterior extremity evenly rounded, posterior much attenuated, pointed. Dorsal margin arched in front, and sloping steeply behind; ventral concave along the greater portion of its length. Seen from above, it is much compressed, oval, not quite 4 times as long as broad, greatest breadth in front of the middle; extremities obtusely pointed. End view oval. Shell smooth and polished, almost destitute of hairs; colour yellowish white. The setæ of the anterior antennæ are nearly equal in length to the 6 preceding joints, sixth joint being longer than the rest. The ante-penultimate joint has at its inner apical angle 2 setæ ; and from its basal portion springs a fine tubular filament, which ends in a pyriform sac or vesicle. The post-abdominal rami are gently curved, the exterior claw somewhat longer than the other. Male unknown. Length 1-22nd in., height 1-55th in.

(The specimens found in Wellington harbour are only doubtfully referred to this species).

(A common North European species. Also found fossil in glacial deposits of Norway and Scotland).

Genus Phlyctenophora, (G. S. Brady).

Carapace elongated, not higher in front than behind; shell smooth, and usually more or less ornamented with dark coloured blotches or striæ. Anterior antennæ 7-jointed, beset with moderately long and slender setæ ; posterior 4-jointed, stout, ending in 4 strong curved claws; second joint bearing a stalked hyaline vesicle and a brush of short setæ. Mandible strongly toothed at the apex, bearing a 4-jointed palp, which is destitute of a branchial appendage (?). First pair of maxilla divided into 4 linear setiferous segments, and having at the base a branchial plate bearing 6 setæ; second pair 4-jointed (?), flexuous, provided with a moveable hinge between the second and third joints; terminal claw long, reflexed against the limb. Postabdominal rami well developed, bearing two strong terminal claws. Spermatic gland of the male cylindrical, beset with a spiral of delicate setose filaments.

1. Phlyctenophora Zealandica, G. S. Brady.-Carapace elongated, compressed; seen from the side, subsiliquose; greatest height in the middle, equal to less than 1⁄2 the length; anterior extremity well rounded, posterior narrowed, and ending in a subacute angle near the ventral surface; dorsal margin well arched, and continued in an unbroken curve to the infero-posteal angle, ventral margin slightly sinuated in the middle; seen from above, the outline is ovate, widest in the middle, and tapering only slightly to the broadly-rounded extremities; width and height about equal; end view sub-circular, rather narrowed and angular below. Shell-surface smooth, whitish, marked with a few irregular striga of a blackish hue, and on the ventral surface with a broad longitudinal and transversely striated squamous band. Length, 1-26th in.

Also found at Port Jackson, Australia, in a depth of 2-10 fathoms; and in Humboldt Bay, New Guinea, in 37 fathoms.

Genus Aglaia (G. S. Brady).

Shell smooth and polished, of about equal height before and behind, compressed, subcylindrical. Anterior antennæ 7-jointed, beset with short, stout setæ; posterior robust, and bearing at the apex of each joint several strong curved set; furnished also with a very small hyaline vesicle, and on the penultimate joint with a lash of very short setæ. Mandibles slender, divided at the extremity into about 5 blunt teeth, and furnished with a large, narrow, branchial palp. First pair of jaws divided into 4 elongated segments, and bearing a distinct branchial appendage; second pair flexuous, 4-jointed, last joint armed with 3 setæ, one of which is very long, and finely pectinate on its inner margin. Postabdominal rami moderately robust, bearing 2 curved terminal claws, one seta on the anterior, and 2 on the posterior margin. Testis disposed round the body of the animal; mucous gland of the male elongated, and composed of 7 series of whorled filaments.

1. Aglaia clavata, G. S. Brady.-Shell elongated, reniform; seen from the side rather lower in front than behind, height greatest in the middle, and equal to less than half the length, extremities well rounded, dorsal margin gently arched, ventral slightly sinuated in the middle; seen from above, the outline is subclavate, widest behind the middle, tapering very gradually towards the front, and scarcely at all behind; anterior extremity very obtusely pointed, posterior broadly rounded; width and height nearly equal; end view circular; shell-surface perfectly smooth. Length, 1-45th inch.

Genus Macrocypris (G. S. Brady).

Carapace elongated, attenuated at the extremities; valves unequal, the right larger than the left, and overlapping dorsally ; hinge-line flexuous. Surface of the shell smooth, polished, and destitute of hairs. Antennæ short and robust; anterior 7-jointed, tapering to the apex, bearing numerous short setœ; posterior 5-jointed, last 2 joints very short; terminal claws elongated; second joint bearing a bundle of short 2-articulate setæ. Mandibles large, dilated, and armed with 6 or 7 strong teeth; palp elongated, 4-jointed, and provided with a branchial appendage. The first pair of jaws have an unusually small, subovate branchial plate, and the external segment is narrow, and not larger than the rest; second pair destitute of a branchial appendage; palp in the female large and subpediform, 4-jointed, the last joint armed with 3 claws; in the male, very robust and subcheliform. First pair of feet much elongated, 5-jointed, last joint armed with 1 or 2 long curved claws; second pair very different, covered entirely by the shell, 5-jointed, terminal claw very long and recurved. Postabdominal rami rudimentary, forming 2 small simple appendages attached to the posterior

part of the abdomen. No eye. Male smaller than the female; copulative organs large; spermatic glands long and narrow; the lateral filaments apparently not arranged in a verticillate

manner.

1. Macrocypris tumida, G. S. Brady.-Shell oblong, tumid, subovate; seen laterally the anterior extremity is broadly rounded, the posterior obliquely rounded, produced, and obscurely angular below; dorsal margin boldly and evenly arched, highest in the middle; ventral straight; height equal to half the length; seen from above the outline is broadly ovate, widest in the middle, and tapering very slightly towards the extremities, which are broadly rounded; the anterior slightly mucronate, width equal to the height; end view nearly circular. Shell-surface smooth. Length 1-16th inch. Also got in Royal Sound, Kerguellen Island, in 28 fathoms.

FAMILY II.-CYTHERIDÆ,

Genus Cythere (Müller).

(Characters shortly given in Trans. N.Z. Inst., Vol. XI., p. 254.)

I. Cythere murryana, G. S. Brady.-Carapace of the female, as seen from the side, oblong, subquadrangular, scarcely higher in front than behind, height equal to half the length, anterior extremity rounded, posterior narrower, subtruncated, and rather angular, the lower angle rounded off; dorsal margin nearly straight, but towards the hinder end, suddenly depressed and excavated; ventral margin sinuated in the middle, and turned upwards behind; seen from above the outline is subovate, width nearly equal to the height, sides slightly curved and nearly parallel, extremities obtusely rounded; end view subhexagonal, with obtusely rounded angles. Surface marked with numerous closely-set small angular excavations. Length 1-62nd inch.

2. Cythere scabrocuneata, G. S Brady.-Shell compressed, ovate-oblong in its dorsal aspect, and having all its margins very uneven; seen from the side, the shape of the female shell is that of a long triangle with the apex behind; all the margins, but especially the dorsal, denticulated or jagged, highest in front; the dorsal and ventral margins gently curved and converging equally to the pointed posterior extremity; seen from above the outline is ovate, twice as long as broad, and widest near the middle, extremities broad and rounded off, lateral margins curved and converging rather more abruptly behind than in front. Shell-surface rough, with prominent nodules and scattered illdefined ridges. Length 1-33rd inch. The shell of the male is a good deal narrower and longer.

(Also found in Bass' Straits, in 38-40 fathoms, and in the Inland Sea, Japan, in 15 fathoms.)

Genus Cytheropteron (G. O. Sars).

Valves mostly subrhomboidal, tumid, unequal, and different in shape, the right valve more or less overlapping the left on the

dorsal margin; surfaces of the shell variously sculptured, punctate, papillose, reticulated, or transversely rugose; ventral surface produced laterally into a prominent, rounded or spinous ala; posterior margin produced into a more or less distinct but obtuse beak; hinge formed by 2 small terminal teeth on the right, and by a minutely crenated median bar on the left valve. Musclespots usually 4, linear-oblong, arranged in an obliquely transverse row just above the middle of the ventral margin. Anteriorantennæ shortly setiferous, and composed of 5 joints; the penultimate joint elongated, and bearing on the middle of the anterior margin 2 hairs; posterior antennæ distinctly 5-jointed, flagellum long. Mandibles of moderate size; palp 3-jointed, branchial appendage bearing 2 very small setæ. Terminal lobes. of first pair of maxilla long or narrow; branchial plate bearing on its external margin two non-ciliated setæ, which are directed downwards, and arise from a separate lobe. Feet long and slender, with slender terminal claws. Abdomen ending in a long, narrow process; postabdominal lobes bearing 3 short hairs. Copulative organs of the male armed behind with 3 spiniform processes, one of which is 3-furcate; eyes wanting.

1. Cytheropteron wellingtoniense, G. L. Brady.-Shell, seen from the side, flexuous in outline, subrhomboidal, highest in the middle, height equal to nearly two-thirds of length, anterior extremity depressed, rounded off, posterior wider, looking obliquely downward, produced in the middle into a short, broad, and obtuse beak, dorsal margin boldly and evenly rounded, ventral convex, sinuated in front and behind the middle; seen from above, the outline is subovate, widest behind the middle, where the latter alæ project only very slightly; from this point the lateral margins slope with a gentle curve towards the anterior extremity, which is obtuse and slightly mucronate, more abruptly and almost in a straight line to the hinder extremity, which is acuminate; width equal to the height; the end view is equilaterally triangular, the angles rounded, and the lateral margins rather boldly curved, ventral line nearly straight. The shell is almost smooth, but marked on parts of its surface with closely set minute puncta, the ventral surface is indented longtitudinally along the median line, and bears also a few curved striæ; the lateral alæ are curved, scarcely angular, and but slightly prominent. Length 1-43rd inch.

(To be continued.)

GENERAL NOTES.

THE UNIVERSITY OF NEW ZEALAND. The two seats in the Senate rendered vacant by the death of the Rev. Wm. Johnstone and the retirement of the Rev. Dr. Stuart, have been filled up by the appointment of the Rev. W. Salmond, D.D., Professor of Theology in the Otago Presbyterian Theological College; and of Prof. Macgregor, Professor of Mental and Moral Philosophy in Otago University.

The present position of Science subjects in the examinations of the University is somewhat unsatisfactory to teachers and students alike, and it is to be hoped that the matter will receive further consideration at the forthcoming meeting of the Senate. There is not yet a sufficient amount of scientific leaven in the present constitution of the Senate, but it is to be hoped that what there is will succeed in leavening the whole.

ON THE OCCURRENCE OF PTEROSTYLIS APHYLLA (LINDLEY) IN NEW ZEALAND.-Last summer Mr. Sidney Fulton, of Outram, discovered an orchid on the Lee Stream Flat, which he could not refer to any known New Zealand species. Specimens were forwarded to Mr. Petrie and myself, but were too far past flowering to enable us to identify them. This season the same ground has been searched earlier, and the plant has been obtained in flower by the same indefatigable collector, and we are thus enabled to add another species to our New Zealand flora. The new species is Pterostylis aphylla, Lindl., hitherto only found in Tasmania, but closely allied to the Australian P. parviflora. It is the most inconspicuous species of the genus, and belongs to a section hitherto not represented in this Colony; all our other species have a single flower on the scape, while this bears several in a raceme. The pedicels of the individual flowers are peculiarly twisted, so as to bring some of the flowers face to face, while others follow each other up in a most remarkable manner, all but the terminal one facing towards the rachis. This peculiarity is referred to in Bentham's Fl. Austr., vol VI., p. 361, where the plant is shortly described.

The following is the description of our New Zealand specimens-Leaves in radical rosettes, 4-1⁄2 inch long, ovate, subacute or obtuse, shortly petiolate, distinctly reticulated, withering at the time of flowering. Scape, 2-4 inches high, with 1-4 flowers, often furnished below with 2 or 3 empty bracts; flowers greenish-brown in colour. Galea about 3 lines long, much incurved at the sub-acute tip, lower lip broad, almost obtuse at the apex, which is divided into two short lobes, which do not project