SYSTEMATIC 22 3 



SOLENOCERINAE 



Solenocera membranacea (Milne-Edwards) 

 Heldt, 1938, p. 125. 

 Occurrence. St. WS 980, 50-0 m., 1 protozoea, stage II; 2 protozoeae, stage III. 



Sergestidae 



,, .. Sergestinae 



Sergestes cornutus Kroyer 



Gurney & Lebour, 1940, pp. 13-19. 

 Occurrence. St. WS 977, 50-0 m., 1 elaphocaris, stage I changing to stage II. 



Sergestes sp., ef. arcticas Kroyer 

 Hansen, 1922, p. 62. 

 Occurrence. St. WS 977, 50-0 m., 1 mastigopus, late larval or juvenile. 



Sergestes arcticus Kroyer 



Gurney & Lebour, 1940, pp. 19-21. 



Occurrence. St. WS 996, 250-100 m., 1 elaphocaris, stage III. 



Sergestes diapontius Bate 

 Hansen, 1922, p. 172. 

 Occurrence. St. WS 997, 50-0 m., 1 mastigopus, late larval or juvenile, c. 15 mm. long. 



The specimen agrees with diapontius in the shape of the third maxillipede. It is apparently inter- 

 mediate between diapontius and vigilax. I am inclined to place it in diapontius as this species is known 

 to have a more southerly distribution than vigilax. 



Caridea 



hoplophoridae 

 Acanthephyra acanthetelsonis Bate 



Kemp, 1939, p. 574. 

 Occurrence. St. WS 978, 100-50 m., 1 larva, stage V; 1000-750 m., 1 post-larva or juvenile. 



The specimen from 1000-750 m. is probably a post-larva as it closely resembles the post-larva of 

 Acanthephyra purpurea Milne-Edwards from Bermuda (see Lebour, in Gurney & Lebour, 1941). 

 It is, however, clearly distinguishable by the number of dorso-lateral spines (in this case fourteen each 

 side), the number in A. acanthetelsonis, according to Kemp, ranging from thirteen to nineteen. The 

 adult characters are not all present, but the dorsal spines on the third to the sixth abdominal somites 

 and the large hump on the third, continuing in the dorsal carina, are conspicuous. There are five 

 spines dorsally on the rostrum and one below as in the post-larval A. purpurea, and the rostrum hardly 

 reaches to the end of the eyes. Holthuis (1951) has recorded this species from West Africa (Gold 

 Coast and Liberia) and Kemp gives its distribution as 'Central and South Atlantic about 14 N. to 

 28 S.' 



