The Cumacea of the Puritan Expedition. 429 



The specimens which I bave referred to this species are very 

 agmentarj and there may be some little doubt as to the ideuti- 

 3ation. Dr. Lo Bianco has recorded the species from Station 57, 

 1 the evidence of a specimen which may bave been better preserved 

 lan auy of those seen by me^ 



Occurrence. — Stations 26, 39, 57. Depths 1000-1100 metres. 



Diastylis capreensis n. sp. (pi. 28 figs. 44, 45). 



Description of young Female (fìg. 44). Total lengtb 5.2 mm. 



The carapace is less than V3 of the total lengtb, inflated, 

 ith the dorsal surface strongly arched aud declivous anteriorly. 

 he pseudorostrum is moderately long, horizontal and acute. There 

 I no eye. The surface of the carapace carries a number of long 

 3Ìne8 varjing a little in arrangement in dififerent specimens and 

 ot always symmetrical on the two sides. They are arranged on 

 le dorsal surface in two longitudinal rows which diverge widely 

 Qteriorly. The largest of these spines are a pair placed on the 

 ighest poìnt of the dorsal surface and one on each side just behind 

 le base of tbe rostrum. In addition there are a few spines on tbe 

 nterior part of the side of the carapace. The lower margin is 

 ecupied by a serìes of ^teeth becoming spiniform anteriorly. 



The last thoracic somite has the postero-lateral angles produced 

 ito spiniform teeth projecting downwards, and has two pairs of 

 enticles on the dorsal surface. The first abdominal somite has one 

 air and the last two somites bave several denticles on the dorsal 

 urface. 



The telson (fig. 45) is shorter than the last three somites 

 ogether. The pre-anal tubulär part is nearly twice as long as the 

 lost-anal. The latter has concave sides converging to a narrow 

 pex hearing a pair of minute spines. There are no lateral spines 

 ir teeth. 



The antennules bave tbe distai segment of tbe peduncle 

 onsiderably longer than the preeeding. The first legs are broken 

 (1 ali the specimens examined. The basis has some small teeth 

 n ita lower surface. The second leg has a strong spine proceeding 

 *om the inner surface of the ischium. 



Hn my paper on Irish Cumacea (Fisheries Ireland Se. luvest. 190-1 N: 1 

 905 j pp. 12, 44). I accidentally omitted to notice that this species had been 

 'corded from the Mediterrauean. 



29* 



