MARINE CRUSTACEANS. 



431 



in the middle of the fore edge of the meropodite ; and exopodite well developed. (7) All 

 the legs present and stout. (8) Abdomen not nearly covering the last thoracic stemite. 



4. Selwynia laevis n. sp. (Fig. 112). 



Diagnosis : " A Selwynia with the body smooth and naked except for some hairs on 

 the underside and on the last three joints of the walking legs, microscopically pitted all 

 over; the regions of the back barely to 

 be made out, the chelipeds very large 

 and stout, their fingers nearly as long 

 as the palm, gaping slightly, finely 

 toothed on their opposed edges, and not 

 furrowed ; no thorns or teeth on any of 

 the joints of any leg, save a small tooth 

 underneath the meropodites of the walk- 

 ing legs ; and the walking legs very 

 stout, with very small end-joints, the last 

 pair being a good deal smaller than the 

 rest." 



Length of the only specimen (a 

 male) : 6 mm. Breadth : 8 mm. Colour 

 in spirit : white. 



One male specimen was taken at 

 Hulule, Male Atoll. 



[Genus Caecopilumnns Borradaile, 1902.] Fig. 112. Selwynia laevis; A. whole animal, B. outside of hand, 

 r/~( •; I • J T5 J •! C. tliird maxiUiped. 



yVaecopilumnus hirsutiis Borradaile, 

 1902.] See above, Pt. in. p. 267. 



This genus is at least allied to, if not identical with, Typhlocarcinodes Ale, 1900. I 

 formerly regarded it as incertae sedis, but now believe that its proper place is in this 

 subfamily. 



Family Pinnotheridae. Genus Pinnotheres Latr., 1802. 



5. Pinnotheres purpureus Ale, 1900. Alcock, VI. p. 339. 

 Dredged from 30 fathoms, Felidu Atoll. 



6. Pinnotheres tenuipes n. sp. (Fig. 113). 



Diagnosis : " A Pinnotheres with the carapace subcircular, smooth, moderately convex ; 

 the front rounded and hood-like ; the eyes small, well pigmented ; the end-joint of the third 

 maxiUiped slender, set far back on the inner edge of the joint before it, nearly reaching 

 the tip of that joint ; the chelipeds short, moderately stout, with fingers about | the length 

 of the palm, and a strong, rounded tooth on the moveable one about \ of its length from 

 the articulation ; the walking legs slender, the second the longest, the second and third nearly 

 equal, and the fourth much the shortest, the last two joints of the walking legs hairy and 

 their end-joints about equal in length, except for those of the fourth pair, which are much 

 longer and more slender than the rest." 



