81 



to a single organ, as in most other Cumacea, and also by tin- dentated crest of 

 the carapace in the female. Besides the type species described below, another 

 very distinct species, C. (hnicola, has been recorded by the present author from 

 the Mediterranean. 



Cumella pygmaea, G. 0. Sars. 



(PI. LV). 

 Claudia pi/r/nirea, G. 0. Sars. Om den aberrante Krebsdyrgruppe Cumacea, p. 74. 



Syn : Oumella ayilis, Norman (male). 



Specific Characters. Female. Body comparatively short, with the anterior 

 division very sharply marked off from the slender tail. Carapace exceedingly 

 large and deep, being more than 3 times as long as the exposed part of the 

 trunk, its anterior part rather compressed, dorsal face evenly arched, and crested 

 throughout its entire length, the crest being armed with from 8 to 12 minute 

 anteriorly-curving denticles; pseudorostral projection comparatively short, sub- 

 rostral corners distinctly prominent, and defined above by an even emargination. 

 Tail (excluding the terminal appendages) somewhat shorter than the anterior divi- 

 sion, and very narrow. Eye fairly conspicuous and circular in form. Superior 

 antennae with the inner flagellum distinctly biarticulate. First pair of legs scarcely 

 attaining the length of the carapace, basal joint about the length of the 3 suc- 

 ceeding joints combined, and strongly serrate at the end on both edges, ante- 

 penultimate joint fully as long as the last 2 joints combined; 2nd pair with the 

 terminal joint about the length of the antepenultimate one. Uropoda with the 

 stem coarsely serrate inside, inner ramus rather large, though shorter than the 

 stem, and armed with about 7 spinules increasing in length distally, outer ramus 

 very narrow, with a slender spine at the tip. Body more or less dark-coloured 

 owing to a brown pigment, especially conspicuous on the carapace. Length 

 about 2 1 /.' nim. 



Adult male somewhat more slender than tne female, with the anterior 

 division far less vaulted above, and scarcely at all compressed in front. Cara- 

 pace shallower and quite unarmed, with the upper margin nearly straight; pseu- 

 dorostral projection shorter, subrostral corners less prominent. Eye very large, 

 and subquadrangular in form, with 7 distinct cornese, one median and 3 lateral 

 on each side, the former very prominent. Inferior antennse slightly exceeding 

 the anterior division of the body in length. Basal joint of the 4 anterior pairs 

 of legs greatly dilated. Uropoda differing but slightly in structure from those 

 in female. 



