The Cumacea of the Puritan Expedition. 423 



dorsal surface of the carapace is occupied by a group of rather 

 large curved spines (about 10) iiot quite symmetrically arranged on 

 each side of the middle line. On each side a little way above the 

 lower margin of the carapace a closely set row of spines extends 

 from the antero-lateral corner to the hind margin. There are a 

 pair of sniall spines at the tip of the pseudorostrum above. There 

 is no ocular lobe except for a very small pointed median process 

 on the front of the cephalic lobe. 



The texture of the carapace is coarsely cellular. 



There is a pair of dorsal spines on each of the last three 

 thoracic so mit es. The pleural plates of the last four somites are 

 expanded and armed with marginai teeth. The abdominal somites 

 are smooth and each of the first four bears near the anterior end 

 a pair of straight spines slopìng forwards on the dorsal surface and 

 a pair of small sharp spines on each side. The outline of the fifth 

 (fig, 27) somite is similar to that of the female. The last two 

 Segments of the antennal pedunele (fig. 2(3) are subequal in length. 



The pedunele of the uropods (fig. 27) is equal to or a very 

 little longer than the last two somites together and has a series of 

 sliort seta3 on its inner edge. The endopod is Va of ^^^ length of 

 the pedunele and has six spines on its inner edge. The exopod is 

 about Vó of the length of the endopod. Young specimens of 

 both sexes agree in general characters with the female. 



Remarks. — This species is distinguished from the preceding 

 in both sexes by the absence of the ocular lobe, by the slight but 

 characteristic and Constant difference in the outline of the penultimate 

 somite and by the relatively longer rami of the uropods. In the 

 female the absence of the dorsal spine of the carapace and in the 

 male the different armature of the carapace and abdomen are well 

 marked distinctive features. The appendages agree, except in some 

 trìfling details, with those of P. armata. 



Occurrence. — Stations 17, 18, 26, 30, 39, 44. Depth 

 950— 1200 metres. 



Cattipylaspis glabra G. 0. Sars. 



C. glabra, G. 0. Sars, Arch. Math. Nat. 4. Bd. 1879 p. 77, pls. 44— 



47; ìd. Crust. Norway Voi. 3 1900 p. 86, pi. 58. 



The specimens referred to this species are, for the most part, 



immature. Even nearly adult specimens however are smaller than 



the Mediterranean specimens recorded by Prof. Sars, a female with 



