144 A. Alcock — Carcinological Fauna of India. [No. 2, 



less than three-fourths of the extreme breadth, owing not only to less 

 development of the clypeiform expansions, but to the relative less 

 breadth of the body. 



3. Calappa spinosissima, Edw. 



Calappa spinosissima, Milne Edwards, Hist. Nat. Crnst. II. 106 : A. Milne 

 Edwards, Nouv. Archiv. du Mus. X. 1874, p. 55 : Richters, in Mobius Meeresf. 

 Maurit., p. 157. 



Calappa tuberculata (part) Hoffmann in Pollen and Van Dam, Faun. Madagasc. 

 V. ii. Crustacea, p. 25, pi. vi. figs. 40, 43, 44. 



Differs from C. hepatica only in the following characters : — 



(1) the serrations on the antero-lateral border of the carapace, as 

 also the teeth on the antero-lateral border of the clypeiform expansions, 

 are in the form of sharp np-cnrved spines : 



(2) the ' postero-lateral border of either clypeiform expansion has 

 three spines where, in G. hepatica, there are only sutures on the under 

 surface : 



(3) some of the tubercles on the outer surface of the palm have 

 sharp spinous points. 



From a single small specimen, which is all that the Indian Museum 

 at present possesses, it is impossible to express any opinion as to 

 whether this species is, as Hoffmann appears to have regarded it, a 

 variety of C hepatica, or not. 



4. Calappa lophos, (Herbst). 



Cancer lophos, Herbst, Krabben, I. ii. 201, pi. xiii. fig. 77. 



Calappa lophos, Fabricins, Ent. Syst. Suppl., p. 346 : Bosc, Hist. Nat. Crnst. 

 I. 184 : Latreille, Hist. Nat. Crnst. et Ins. V. 394 : Milne Edwards, Hist. Nat. 

 Crust. II. 104 : De Haan, Fann. Japon. Crust, p. 72, pi. xx. fig. 1 : Heller, ' Novara ' 

 Crust, p. 69: Miers, Ann. Mag. Nat. Hist. (5) V. 1880, p. 315, and 'Challenger' 

 Brachyura, p. 286 : E. Nauck, Zeits. Wiss. Zool. XXXIV. 1880, p. 46, (gastric 

 teeth) : de Man, Archiv. fur Naturges. LIII. 1887, i. p. 389 : J. B,. Henderson, Trans. 

 Linn. Soc, Zool., (2) V. 1893, p. 395. 



? Calappa guerini, Brito-Capello, Jorn. Sci. Nat. Lisb. III. 1870-71, pp. 128, 133 

 pi. ii. fig. 2. 



The length of the carapace is not quite two-thirds the extreme 

 breadth. 



Carapace smooth, except for a few lumps anteriorly and a few 

 scattered granules posteriorly : its antero-lateral borders beaded and 

 finely festooned : its posterior border beaded, and bounded on either 

 side by a tooth. 



Clypeiform expansions nearly as broad (transverse measurement) 

 as long (oblique antero-posterior measurement), and formed of about 6 

 large laciniated teeth. 



