PLATE XXI. (Crustacea, PLATE XLVII.)

Dic calmani, n.g. et sp.

1.i. Lower lip, with further enlargement of one apex.

mxp. 1, mxp. 2, mxp. 3, mxp. 3. First, second, and third maxillipeds, each with partial further enlargement. In the complete figure of the third maxilliped, the fifth joint is seen by transparence; in the more highly magnified part of the companion third maxilliped, the fifth joint is uppermost.

prp. 2, 3, 4, 5. The second, third, fourth, and fifth peræopods.

urp. The uropod, with higher magnification of its exopod and endopod.

Pl. The pleon, with higher magnification of apex and anal valves, and surface markings of the sixth segment.

All the details in this and the preceding Plate B are enlarged to a uniform scale, with higher enlargement, also uniform, of some parts, including distal portion of mxp. 3, and the two branches of the left uropod.

PLATE XXII. A. (Crustacea, PLATE XLVIII. a.)

Metaprotella makrodactylos, n. sp.

n.s. Line indicating natural size of the specimen figured below in lateral view. a.i., m. First and second antennæ, the second in attachment to one of the mandibles.

a.s.,

1.s., l.i., m., mxp. Upper and lower lips, mandible, and maxillipeds, more highly magnified than the antennæ and attached mandible.

gn. 1, gn. 2., prp. 3, prp. 4. First gnathopod with higher magnification of hand and finger, second gnathopod with base of the second joint more enlarged; third peræopod; base of the sixth joint of the fourth peræopod enlarged on the higher scale.

prp. 1, prp. 2. The rudimentary first and second peræopods with the respective branchial vesicles magnified on the higher scale.

Pl V. Ventral view of the pleon, magnified on the same scale as the mouthorgans, first and second peræopods, and partial details.

PLATE XXII. B. (Crustacea, PLATE XLVIII. B.)

Caprella triodous, n. sp.

Line indicating natural size of specimen figured below in dorsal aspect.

n.s.

OC.

An eye.

a.s., a.i. Flagellum of first antenna; flagellum and last peduncular joint of second

antenna.

gn. 1, gn. 2. First gnathopod from distal end of second joint; second gnathopod from middle of the hand.

prp. 4. Last three joints of the fourth percopod.

Pl. D., Pl. V. Dorsal and ventral aspects of the pleon.

All the detail figures magnified to the same scale.