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.s., a.i., m. First and second antennas, the second in attachment to one of the 

 mandibles. 



l.s., l.i., m., mxp. Upper and lower lips, mandible, and maxillipeds, more highly 

 magnih'ed than the antennae 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 peraeopod ; base of the sixth joint of the fourth peraeopod enlarged 

 on the higher scale. 



prp. 1, prp. 2. The rudimentary first and second perreopods with the respective 

 branchial vesicles magnified on the higher scale. 



PI V. Ventral view of the pleon, magnified on the same scale as the mouth- 

 organs, first and second perreopods, and partial details. 



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



Caprella triodous, n. sp. 



n.s. Line indicating natural si/.e of specimen figured below in dorsal aspect, 

 oc. An eye. 



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

 antenna. 



gn. 1, gu. 2. First gnathopod from distal end of second joint; second gnathopod 

 from middle of the hand. 



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



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

 All the detail figures magnified to the same scale. 



