1898.] A. Alcock — Carcinological Fauna of India. 217 



between them, the tubercles on the smaller hand being in longitudinal 

 series and the hairs thick there. 



Legs smooth ; the borders of the last four joints, specially the 

 upper border, fringed with longish hairs. 



Colours in spirit, warm light brown, the legs in good specimens 

 cross-banded alternate dark and light brown. 



In the Indian Museum are three specimens, from the Laccadives, 

 the Andamans and Ceylon, (also one from Samoa) 



Alliance II. Trapezioida. 

 Trapezia, Tetralia. Quadrella. Sphenomerus. 



Trapezia, Latreille. 



Trapezia, Latreille, Fam. Nat. p. 269, and Encyclop. Meth. x. 695. 



Trapezia, Milne Edwards, Hist. Nat. Crust. I. 427. 



Trapezia, Dana, Silliman's Jonrn. (2) XII. 1851, p. 128, and U. S. Expl. Exp. 

 Crust. I. p. 252. 



Trapezia, A. Milne Edwards, Nouv. Archiv. du Mus. IX. 1873, p. 257 and Miss. 

 Sci. Mex., Crust, p. 341. 



Trapezia, Miers, Challenger Brachyura, p. 163. 



Trapezia, Ortmann, Zool. Jahrb., Syst., X. 1897, p. 202. 



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



Carapace approaching the quadrilateral, little convex, not much 

 broader than long, smooth and without any trace of regions. 



Antero-lateral borders much shorter than the postero-lateral, run- 

 ning backwards almost straight and parallel with one another, not 

 therefore meeting the convex curved and convergent postero-lateral 

 borders at any angle. 



Fronto-orbital border extremely broad, about as extensive as the 

 greatest breadth of the carapace. Front broad, horizontal, lamellar 

 separated from the supra-orbital angle by a notch ; cut into two lobes, 

 of which both the inner and outer angles are pronounced : so that with 

 the supra-orbital angle the front usually appears 6-toothed. 



The orbits, which afford no concealment to the eyes and are large, 

 are cut out of the antero-lateral angles of the carapace : their dentiform 

 upper and lower inner angles are broadly in contact, so that the 

 antennas are widely excluded from the orbit : their margins are without 

 fissures or sutures. 



The antennules fold nearly transversely, but in most spirit specimens 

 are extended beyond their fossae. The basal antennal joint is slender 

 and very short and does not nearly reach the front : the flagellutn is 

 very long, much longer than the major diameter of the orbit. 

 J. II. 28 



