214 PERCY SLADEN TRUST EXPEDITION 



77. Atergatopsis signata (Adams and White) (Plate 17, fig. 7). 

 Atergatopsis signatus A. Milne Edwards, Nouv. Arch. Mus. Hist. Nat., Paris, i. 1866, 



p. 253. 



Coetivy; 1 £, 1 ?, 2 juv. (1 soft shell, the other much broken). 



Male, C. 1. 31-3 mm., C. b. 46"3 mm., F. b. 10"8 mm. 



The male resembles in all essentials the figure of a much larger specimen given 

 by the original describers (Adams and White, Zool. Voy. Samarang, Crust., pi. 10, fig. 1). 

 In the specimen in hand, the third, fourth and fifth abdominal segments are only partially 

 fused, the proximal of the two sutures being best marked. Frontal lobes oblique, well 

 separated by a V-shaped notch. On the outer surface of the palm, a smooth longitudinal 

 ridge just below the middle divides the upper rugose portion from the lower, nearly 

 smooth portion. Three large teeth on immovable finger; three or four smaller teeth 

 on the movable finger. 



78. Platypodia cristata (A. Milne Edwards). 

 Lophactcea cristata Alcock (3), p. 100. 



Diego Garcia, lagoon ; 1 .$ : barachois ; 1 ? ovig. 



79. Platypodia semigranosa (Heller). 

 Lophactcea semigranosa Alcock (3), p. 101. 



Salomon ; 1 juv. Cargados Carajos, 28 fins., Sta. B 20 ; 1 ?, 1 juv. Amirante, 25— 

 80 fins., Sta. E 11; 1 $. 



The young specimens (5 mm. wide and less) have the dorsal surface of the carapace 

 almost smooth ; there are only a few low granules near the antero-lateral teeth. 



80. Platypodia anaglypta (Heller) (Plate 17, fig. 3). 

 Lophactcea anaglypta Alcock (3), p. 102. 



Peros, Coin ; 1 $. Salomon ; 1 ?. Coetivy ; 7 $, 2 ?. 



81. Zosimus ceneus (Linnaeus). 

 Zozymus a&neus Alcock (3), p. 104. 



Peros, Coin ; 1 ?. Salomon ; 1 f, 1 ?. Egmont, reef ; 1 ?. Coetivy ; 1 $, 3 ?. 



82. Lophozozymus dodone (Herbst). 

 Lophozozymus dodone Alcock (3), p. 108. 



Cargados Carajos, 28 fins., Sta. B 20 ; 1 %. Amirante, 34 fms., Sta. E 9 ; 4 $, 3 ? : 

 30 fms., Sta. E 21 ; 1 ?. Seychelles, 34 fins., Sta. F 8 ; 1 ? juv. Coetivy ; 2 $. 



83. Lophozozymus pidchellus A. Milne Edwards. 



Lophozozymus pulchellus A. Milne Edwards, Ann. Soc. Entom. France (4), vii. 1867, 

 p. 273 ; Nouv. Arch. Mus. Hist. Nat., Paris, ix. 1873, p. 205, pi. 7, fig. 3. 



Egmont, reef; 1 ?. Seychelles, 34 fins., Sta. F 8 ; 2 ?. 



Anterior of the three lateral teeth obsolescent, indicated merely as the anterior end of 

 the marginal crest. Network of lines embracing the whole of the dorsal surface except in 

 the immediate neighbourhood of the lateral teeth ; network much finer on the Seychelles 

 individuals than on that from Egmont Reef. 



