586 



DEPTHS OF THE OCEAN 



science. One of these new species is represented by a specimen 17 cm. 

 long (see Fig. 425) — one of the largest pelagic prawn ever taken. Noto- 

 stomus was taken only in the deepest hauls, which only extended down 

 to 1500 or 2000 metres ; perhaps hauls in still deeper water might have 



Fig. 425. 



Notostomus, n. sp. Nat. size, 17 cm. 



yielded more of them. Still larger are the bottom-living Peneidas, of 

 which a whole tubful were taken south of the Canaries in our trawl 



(Station 41, 2605 metres), 

 some of them 30 to 40 cm, 

 long, with feelers 4 or 5 feet 

 long. 



One of the most remark- 

 able genera is Eryonezcus, of 

 which twelve species are 

 known, easily recognisable 

 by their inflated balloon-like 

 bodies (see Fig. 426). They 

 are allied to Pentacheles, 

 Polycheles{¥\g. 427), etc., and 

 Sund, after examining the 

 twenty - four specimens col- 

 lected by the " Michael Sars," 

 expects to be able to show that 

 they are really the larvae of these abyssal bottom-living decapoda. Thus, 

 what might be regarded as a new species of Eryoneiais is in reality a 

 larval stage of a previously known decapod, PolycJieles sculptus. 



During the first cruise of the " Michael Sars " in the Norwegian Sea I 

 succeeded in capturing the two species PasiphtEa pj'inceps and Hymenodora 

 glacialis (Fig. 428; in deep hauls. PasipJicea probably lives sometimes 

 on the bottom, sometimes in midwater, and is common in Norwegian 



Fig. 426. 



Eryoncicus Circus, Spence Bate. 



Faxon. ) 



