PONTELLUSM3. 71 



in the male as long as the last two. The third and 

 fourth abdominal segments in the male each bear a 

 sharp projecting spine on the right side, and the last 

 thoracic segment is produced downwards into a hook- 

 like spine. The caudal seta3 are not as long as the 

 abdomen. Length of the animal yyth of an inch 

 (1'5 mm.). Colour dark brown. 



This species is at times taken in great abundance 

 by the surface net. I have a gathering taken in this 

 way by Mr. E. C. Davison off the Yorkshire coast, 

 which more than filled a four ounce bottle, and con- 

 sisted of about equal quantities of P. brevicornis, Ano- 

 malocera Patersonii, and larval decapods. I have also 

 notes of its occurrence in surface gatherings from 

 Bridlington Bay, the Channel Islands, Westport Bay 

 (Ireland), and Kinsale Harbour; in gatherings made 

 amongst Algae and Zostera at Clifden Bay and the 

 Scilly Islands, as well as in tide pools on the Durham 

 coast ; also in dredged material from Cumbrae and 

 Portincross, Firth of Clyde. 



Sub-family 2. PONTELLIN^E, Dana. 



Having two or more paired lateral eyes, in addition 

 to a large median eye which usually springs from 

 behind the rostrum as a projecting globe; in other 

 respects like Calanince. 



