EXPLANATION OF THE PLATES. 275 



Uroptijchus pubescens Fax. Female. Enlarged. 



" " " Antennule. 



" " " External maxilliped. 



PLATE XXVII. 

 Calastacus stilirostris Fax. Male. Enlarged. 



" " " Front and rostrum from above. 



" " " Swimmeret. 



" " " Antenna of the second pair. 



" " " First abdominal appendage of the male. 



" " " Second abdominal appendage of the male. 



" " " Third abdominal appendage of the male. 



Calocaris macandrece Bell. North Atlantic. Antenna of the second pair, 



viewed from above. 

 2". • " " " Antenna of the second pair, viewed from the 



side. 



PLATE XXVIIL 



Axius crista-galli Fax. Female. Enlarged. 



" " " Anterior part, viewed from above. 



" " " Rostrum in profile. 



" " " Swimmeret. 



" " " Antenna of the second pair. 



" " " Leg of fourth pair, male. 



" " " Leg of fifth pair, male. 



" " " First abdominal appendage, female. 



" " " Second abdominal ajipendage. 



Axids acutifrons (Bate). Female. Cheliped. 



PLATE XXIX. 



Eryonicus spinulosus Fax. Dorsal view. Enlarged. 



" " " Lateral view. Enlarged. 



Eryonicus ccecus Bate ? Mandible. Adult male. Station 3375. 



" " " First maxilla, adult male. 



" " " Second maxilla, adult male. 



" " " First maxilliped, adult male. 



" " " Second maxilliped, adult male. 



" " " Third maxilliped, adult male, a, epipod. 



" " " Swimmeret, adult male. 



PLATE XXX. 



Fig. 1. Eryonicus emeus Bate ? Front and oral region, adult male. Station 



3375. a, ophthalmic lobe, a', papilla of 

 ophthalmic lobe, (i, first antenna, y, prox- 

 imal segment of second antenna, y', phy- 

 macerite. y", scaphocerite, or scale of 

 second antenna, y'", fourth, or distal seg- 

 ment of antennal peduncle. S, mandible. 

 8', distal segment of mandibular palp. 

 e, mouth, f, labrura. rj, posterior wall of 

 mouth, fl^, metastoma. 



