Species o/"Micippa and Paramicippa. 5 



Cancer bilobus, Herbst, Nat. Krabben u. Krebse, p. 245, pi. xviii. fie-. 98 

 (1790). 



Maia eristata, Latreille, Atlas de l'Encycl. Me"th. d'Hist. Nat. pi. cclxxx. 

 fig. 1 (1818). 



Mieippa eristata, Leach, Zool. Miscell. iii. p. 1(3, pi. exxviii. (1817) ; 

 M.-Edwards, Hist. Nat. Crust, i. p. 330 (1834) ; Crustace's in Cu- 

 vier'a Regne Anim. (ed. 3), Atlas, pi. xxxi. fig. 2 ; Adams and White, 

 Crustacea in Zoology of H.M.S. ' Samarang,' p. 16 (1848) ; Bleeker, 

 ActaSocietatis Indo-Neerlandicae, ii. p. 15 (1857) ; Kossmann (part.), 

 Malacostraca in Zoolog. Ergebnisse einer Reise in die Kustengebiete 

 des Rothen Meeres, p. 5, pi. iii. fig. 1 (1877). 



The carapace is depressed and its dorsal surface is covered 

 with granules or small tubercles, which tend to become spini- 

 form, and with longer spines, disposed as follows : — two on 

 the postfrontal region of the carapace between the orbits ; 

 three in a transverse series on the front of the gastric region, 

 and one behind these ; two contiguous spines on the cardiac 

 region, four or five on each branchial region ; one on the intes- 

 tinal region and two on the posterior margin ; the lateral 

 margins of the carapace are armed with six long spines, and 

 the superior margins of the orbits are also six-spined, the 

 prajocular spine being strongly developed and the postocular 

 bifid and terminating in two spines. The rostrum is vertically 

 deflexed, lamellate, deeply notched at the distal extremity, 

 which is armed with two spines, behind which, on the lateral 

 margins on each side, are three others. The basal joint of 

 the antenna is very considerably enlarged, granulated at the 

 distal extremity and terminating in a spine (the intraocular 

 spine) at the antero-external angle; the following (mobile) 

 joint is not dilated. The merus of the exterior maxillipedes 

 is distally truncated and crenulated, with the antero-external 

 angle subacute or obtuse. The chelipedes (in the adult male) 

 are considerably developed, with the merus, wrist, and palm 

 granulated ; palm rather more than twice as long as broad, 

 and but little enlarged ; fingers with but a small intermarginal 

 hiatus. The ambulatory legs are moderately developed, with 

 the joints subcylindrical, granulated. 



An adult male from Java measures as follows : — Length of 

 carapace to base of rostrum 2i lines (51 millim.) ; length of 

 rostrum 8^ lines (18 millim.) ; length of a chelipede 50^ lines 

 (107 '5 millim.) ; length of first ambulatory leg about 49^ 

 lines (105 millim.). 



Hub. Indo-Malayasian seas ; Philippine Islands ; Java {coll. 

 Brit. Mus.). 



In very small specimens the spines of the dorsal surface of 

 the carapace and the prasocular spine are not developed. 



