356 A. Alcock — Cardiological Fauna of India. [No. 3, 



de Man, Notes Leyden Mas. XIII. 1891, pp. 21, 44, pi. iv. fig. 12: Ortmann, Zool. 

 Jahrb., Syst., VII. 1893-94, p. 751, and Jena. Denk. VIII. 1894, p. 59. 



Gelasimus chlorophthalmus, Hilgendorf (nee Edw.), MB. Ak. Berl. 1878, p. 803 

 (apud de Man). 



Gelasimus Smt'fTm, Kingsley, Proc. Ac. Nat. Sci. Philad. 1880, p. 144, pi. 9, fig. 14 

 (apud Ortmann). 



Uca inversa, Ortmann, Zool. Jahrb., Syst., X. 1897-98, p. 351. 



There are in the Indian Museum specimens of this species from 

 Madagascar and the Red Sea, and some from Karachi which differ 

 from the type in the form of the dactylus of the large male cheliped, 

 and are here separated as a variety.] 



50. Gelasimus inversus, var. sinde?isis, nov. 



This variety differs from typical G. inversus from Madagascar only 

 in having the tip of the dacfcylus of the large male cheliped simple 

 (instead of furnished with a second tooth that gives it a notched 

 appearance) and the palm of the hand smoother externally. 



The species resembles G. annulipes, from which it differs in the 

 following characters : — 



(1) the lateral borders of the dorsum of the carapace are denned 

 by a tine line which is raised and distinct in the anterior third only, 

 and is a little more oblique : 



(2) the lower border of the orbit is much more sinuous, and is 

 either entire or is quite imperceptibly denticulated at its outer angle : 



(3) in the large cheliped of the male the arm is trigonal with 

 sharp edges, the upper edge rising into a distinct lobe or crest and the 

 distal end of the inner edge forming a crest or blunt tooth ; the inner 

 edge of the wrist is distinctly denticulated, and the upper border of the 

 palm has several longitudinal rows of granules ; of the granular ridges 

 on the inner surface of the palm the loiver one that in G. annulipes runs 

 to the loiver edge of the immobile finger is absent or, at most, is represented 

 by a smooth and slight swelling ; finally the immobile finger, though as in 

 G. annulipes nearly straight and shorter than the dactylus, has a simple 

 not a notch-like tip. 



In the Indian Museum are 30 specimens from Karachi. The cara- 

 pace of the largest specimen is 10 millim. long and 18 millim. broad. 



51. Gelasimus triangularis, A. M. Edw. 

 Gelasimus triangularis, A. Milne Edwards, Nouv. Archiv. du Mus. IX. 1873, 

 p. 275: Kingsley, Proc. Ac. Nat. Sci. Philad. 1880, p. 150 : de Man, Jouru. Linn. 

 Soc, Zool., XXII. 1887-88, p. 119, pi. viii. figs. 8-11, and Notes Leyden Mus. XIII. 

 1891, p. 22, and in Weber's Zool. Ergebn. Niederl. Ost. Ind. II. 1892, p. 307: and 

 Zool. Jabrb., Syst., VIII. 1894-95, p. 577 : J. K. Henderson, Trans. Linn. Soc, Zool., 

 (2) V. 1893, p. 388. • 



