1898.] A. Alcock — Car analogical Fauna of India. 221 



A faded specimen could not be distinguished from T. ferruginea. 

 In the Indian Museum are 3 specimens, from Diamond Island (off 

 C. Negrais, Burma). 



The Museum also possesses one of the " Challenger " duplicates 

 from Honolulu. 



143. Trapezia ferruginea var. areolata, Dana. 

 Trapezia areolata, Dana, Proc. Acad. Nat. Sci. Philad. 1852, p. 83, and U. S. 

 Expl. Exp. Crust, pt. I. p. 259, pi. xv. figs. 8a-b and 9 : Heller, Novara Crust, p. 25 : 

 de Man, Archiv. fur Naturges. Mil. 1887, i. p. 317, and Zool. Jahrb. Syst. VIII. 

 1894-95, p. 556 : Henderson, Trans. Linn. Soc, Zool., (2) V. 1893, p. 366 : Ortmann, 

 Zool. Jahrb. Syst. VII. 1893-94, p. 485. 



Trapezia reticulata, Stimpson, Proc. Ac. Nat. Sci. Philad. 1858, p. 37. 

 Trapezia areolata var. inermis, A. Milne Edwards, Nouv. Archiv. du Mus. IX. 

 1873, p. 259, pi. x. fig. 6: Miers, Challenger Brachyura, p. 167 : Zehntner, Rev. 

 Suisse Zool. V. 1894, p. 157. 



Trapezia ferruginea areolata, Ortmann, Zool. Jahrb., Syst., X. 1897, pp. 203, 206. 



This species also differs from T. ferruginea only in colouration. 



The carapace, and sometimes also the upper surface of the chelipeds, 

 is covered by a very elegant honeycomb network of fine brown (iu 

 spirit) lines. Even in old spirit specimens this network can be made 

 out, with a lens, on the carapace, though not on the chelipeds. 



In many specimens of T. areolata, the upper part of the outer 

 surface of the hand is covered with a very fine scarf-like pubescence. 



In the Indian Museum are 52 specimens, from the Audamans, 

 Nicobars, Ceylon and Mergui (besides 3 from other parts of the Indo- 

 Pacific). 



144. Trapezia maculata (Macleay) Dana. 



Grapsillus maculatus, Macleay in Smith's 111. Zool. S. Afr., Ann. p. 67. 



Trapezia tigrina, Eydoux and Sonleyet, Voy. Bonite, Vol. I. p. 232, pi. ii. fig. 4. 



Trapezia maculata, Dana, U. S. Expl. Exp. Crust, pt. I. p. 256, pi. xv. figs. 4a-d: 

 Stimpson, Proc. Ac. Nat. Sci. Philad. 1858, p. 37, and Ann. Lye. Nat. Hist., N. York, 

 VII. 1862, p. 219 : Streets, Bull. U. S. Nat. Mus. VII. 1877, p. 106 : de Man, Archiv. 

 fiir Naturges. LIII. 1887, i. p. 318, pi. xiii. fig. 2 : J. R. Henderson, Trans. Linn. 

 Soc, Zool., (2) V. 1893, p. 366. 



Trapezia rufopunctata var. maculata, Miers, Phil. Trans. Roy. Soc, Vol. 168, 

 1879, p. 487 : Ortmann, Zool. Jahrb., Syst. VII. 1893-94 p. 484. 



Trapezia ferruginea maculata, Ortmann, Zool. Jahrb., Syst., X. 1897, pp. 203, 206. 



Differs from T. cymodoce in the following particulars : — 



(1 ) the front as a whole is not so prominent, nor are its constituent 

 teeth and the supra-orbital angle quite so deep-cut : 



(2) the chelipeds are not much more than twice the length of the 

 carapace in the male, the arm being shorter than in T. cymodoce and 

 ferruginea ; there is a strong spine at the inner angle of the wrist ; the 

 outer surface of the hand is smooth, polished and hairless : 



