MARINE CRUSTACEANS. 439 



outer tooth of the breathing channel; it is widely, but not very deeply, notched. (5) All 

 the three spines at the hinder end are shaqj. The middle one is much the longest and 

 is somewhat upcurved at the tip, which is i'ree from granules. (6) There is no tooth at 

 the end of the long segment of the male abdomen. (7) The length of the male cheliped : 

 length of carapace (without spine) :: 5 : 3. The palm is short, and the moveable finger almost 

 exactly equals the outer edge of the palm in length. 



The specimen is a male 15 mm. long without the spine and is probably full-grown. 

 The colour in spirit is dirty white. It was dredged in 30 fathoms in Mulaku Atoll and 

 probably taken from a sjjonge. 



Genus Leucosia Fabr., 1798. 



15. Leucosia marmorea Bell, 1858. Alcock, ii. p. 221. (PI. XXII. fig. 3.) 

 Dredged in Felidu and Mulaku Atolls in 25 and 40 fathoms. 



16. Leucosia sp. aff. pallida Bell, 1855. See Alcock, li. p. 222. 



A damaged male specimen of a Leucosia from Hulule resembles L. pallida in the shape 

 of the carapace, but ditfers in that: (1) the front has the middle tooth broad and slightly 

 emarginate at the tip. (2) The crenulation of the anterolateral edge is almost obsolete. 

 (3) The outer limb of the V-shaped thoracic hollow is obsolete. 



Genus Pseudophilyra Miers, 1879. 



17. Pseudophilyra pusilla Hend., 1893. Alcock, ii. p. 281. 



The markings on the carapace are irregular and do not agree with Alcock's description. 

 In particular the brown band across the tip of the front is wanting. The palms are some- 

 what longer and flatter than in Henderson's figure [Tr. Linn. Soc. (2) v. Zool.]. 



Dredged in Minikoi, South Nilandu and Suvadiva Atolls in from 2 to 43 fathoms. 



Subfamily Iliinae. Genus Nursilia Bell, 1855. 



18. Nursilia dentata Bell, 1855. Alcock, ii. p. 260. 



Dredged in South Nilandu, Kolumadulu, Suvadiva and Mulaku Atolls in various depths 

 down to 40 fathoms. 



Genus Arcania Leach 1817. 



19. Arcania tubercidata Bell, 1855. Alcock, li. p. 268. 

 Dredged in South Nilandu Atoll in 30 fathoms. 



20. Arcania quinquespinosa Ale. and And., 1894. Alcock, il. p. 266. (PI. XXII. fig. 2.) 



Dredged in Haddumati, Kolumadulu and Suvadiva Atolls in various depths down to 

 44 fathoms. 



Family Dorippidae. Genus Dorippe Fabr., 1798. 



21. Dorippe dorsipes (Linn.), 1764. Alcock, ii. p. 277. (PI. XXII. fig. 1.) 



The specimen carried a sponge when taken. It was dredged in Haddumati Atoll in 

 40 fathoms. 



