RATHBUN— MARINE BRACHYURA 255 



as long as cai'apace with rostrum ; legs decreasing rapidly in length, furnished with tufts 

 of curled hair. 



Dimensions of $ in mm. : C. 1. median 25, C. 1. including horns 347, C. b. 16 - 8, Ch. 1. 

 29% W. L. 1. 48, W. L. 2. 35-3, W. L. 3. 304, W. L. 4. 23"3. 



230. Micippa margaritifera Henderson. 



Micippa margaritifera Alcock (l), p. 253 ; Illus. Invest., Crust., 1898, pi. 35, 

 figs. 3, 3 a. 



Cargados Carajos, 20 — 25 fins., Sta. B 17 ; 1 $. Providence, 39 fins., Sta. D 1 ; 

 1 ? ovig. Amirante, 28 fins., Sta. E 6 ; 1 % ovig. : 30 fins., Sta. E 21 ; 1 $. Seychelles, 

 34 fins., Sta. F 8 ; 2 ? ovig. 



In all these specimens the outer of the three posterior "pearls" are very much 

 smaller than the median one and inconspicuous. 



In describing Lophomicippa limbata*, its relationship to M. parca Alcock was 

 overlooked. The principal difference lies in the absence from the carapace of M. limbata 

 of the coarse granulation plainly visible in M. parca ; instead there are numerous punctse 

 not visible to the naked eye. It is possible that the single punctate specimen from the 

 reef at Makemo is really M. parca with the granules entirely worn off. 



231. Cyphocarcinus minutus A. Milne Edwards. 

 ? Cyphocarcinus minutus Alcock (1), p. 254. 



Cyphocarcinus minutus Nobili, Bull. Sci. France et Belgique, xl. 1906, p. 109. 



Amirante, 25 — 80 fins., Sta. Ell; 1 $. Coetivy ; 1 $ ovig. 



These specimens are very different from each other ; the male corresponds to the 

 description by Nobili (Joe. cit.), but the female has a much more triangular carapace, 

 broader behind ; the rostrum is shorter and the horns nearer together, contiguous at their 

 middle, separated behind by a very narrow slit (overlooked in A. Milne Edwards' figures, 

 pi. 19, figs. 8 and 9, Nouv. Arch. Mus. Hist. Nat., Paris, iv. 1868), and at the 

 extremities slightly diverging ; the legs are shorter and broader, the merus of the first leg 

 does not reach the base of the spine at the angle of the basal antennal segment, while in 

 the male, the same merus reaches quite to the tip of the spine. 



In Edwards' figs. 7 and 10 (op. cit.) the gastric region is represented as overhanging 

 the front, which it does not do in either of the " Sealark " specimens. 



The male from Amirante has a long cylindrical sponge projecting horizontally from 

 the rostrum, as noted by Nobili (op. cit., p. 111). 



Dimensions in mm. : C. 1. $ 7"0, ? 7 "3, C. b. $ 27, ? 3"8. 



232. Macrocazloma nummifer Alcock. 

 Macrocosloma nummifer Alcock (l), p. 255, pi. 4, fig. 4. 



Saya de Malha, 55 fins., Sta. C 15 ; 2 $, 4 ? ovig. Amirante, 2!) fins., Sta. E 2 ; 1 $ : 

 25—80 fins., Sta. Ell; 1 ? ovig. : 30 fins., Sta, K 21 ; 2 $. Seychelles, 31 fins., Sta. F 2 ; 

 1 $ : 44 fins., Sta. F 6 ; 1 $ : 34 fins., Sta. F 8 ; 1 $, 1 ?. 



* Kathbun, 1907, p. 65. 

 SECOND SERIES— ZOOLOGY, VOL. XIV. 33 



