328 Records of the Indian Museum. [Vol. XVI, 



1894. Dotilla feiiestrafa, Ortniann, Zuol. 'Jalirh, Cyxt., \'ll, p. 748. 



iQo^. Dotilla feiiestrafa, I.enz, Abh. Seiick. Natttrf. Ges. Frankfurt 



XXV II, p. 367. 

 1917. Dntilla clepsydra, Stebbing-, Ami. Durban Mas. II, p. 18, pi. v. 



Stebbing records D. clepsydra from Durban Ba}' and compares 

 it with Alcock's D. clepsydrvdactylus [=D. intermedia, de Man), 

 which it resembles in the structure of the chela of the adult male. 

 Apparently, however, he has failed to notice that D. fenesfrata, 

 which also inhabits the S. African coast, possesses a chela of 

 precisely this type. 



I have little doubt that the two are synonymous. Judging 

 from the very rough figure the sculpture of the carapace is of the 

 type found in D. fcr.estrata and in the figure of the under surface 

 there appears to be an indication of a tympanum on the second 

 segment of the abdominal sternum, the third segment not being 

 represented. 



The only discrepancy is that D. clepsydra possesses a tooth 

 at the proximal end of the lower surface of the merus of the 

 €heliped. In males of D sulcata this tooth may be present or 

 absent, but its existence is not meiiiioned in an}^ description of 

 D. fenestrata. 



Of this species, which is restricted to the southern and eastern 

 coasts of Africa, I have seen no specimens. It has been recorded 

 from Zanzibar (Aurivillius, Lenz), Ibo (Hilgendorf), Mozambique 

 (Hilgendorf, Miers), Inhambane (Hilgendorf), Durban Bay (Steb- 

 bing) and the Cape of Good Hope (Ortmann). 



Dotilla sulcata (Forskal). 



1775. Cancer siilcatiis. For^-kal, Descript Aiiitn., p. 92 (Hauniaei. 



i.S()(>. Myctiris stilcatas, Audouin, Descript. de VEgypte, Hist. Nat., 1, 



Bxplic. soiuniaire des planches, p. 8l; Sa\igny, ibid., Planclies. 



Crust., pi. I, figs. 3, i-i\- (1817). 

 1829-44. Myctiris sulcatus, Giierir,, Icon. Regne Aiiiiii., Crust., pi. i\-, Hg.s. 5, 



^a-b. 

 '.' Myctiris sulcatus, Milne- Kdwards, in C'lnier's Regiie Aiiini.. Atlas. 



pi. xviii, figs. 3, 3fl. b. 

 I'^.l.v Ocypode (Doto) sulcata, de ^iaan, in Siebold's faun, 'fapon.. Crust.. 



p. 24. 

 1837. Doto sulcatus, Milne- Kdwards, Hist. nat. Crust. 11, p. 92. 

 1850. Doto sulcatus, Lucas, Hist. \nt. .Inii/i. Artie, Crust, p. 6i,pl.ii, 



fig. I. 

 i86i. Doto sulcatus. Heller, Fif^. Kais. Akad. Wiss. Wicn XLIII, p. 361. 



1888. Dotilla sulcata, de Man, Jourii. Linn. Soc , Zool. XXII, p. 130. 



1889. Doto sulcatus, Cano, Boll. Soc. Nat. Napoli III, p. 249. 



1892. Dotilla sulcata, de Man, in Weber's Zool. Ergebii. Reise Nied. Ost- 



Iiid. 1 1, pp. 309-13. 

 1900. Dotilla affiiiis, .\lcock, Jourii. Asiat. Soc. Bengal 1..XIX, p. 365, and 



niustr. Zool. 'Investigator,' Crust., pi. Ixiii, figs, i, \a, b. 

 1906. Dotilla sulcata, Nobili, Ann. Sci. nat., Zool , (9) IV, p. 315. 

 H)i5. Dotilla sulcata, Laurie, Journ. Linn. Soc, Zool. XXXI, p." 467. 



I agree with Nobili and Laurie that D. affinis is synonymous 

 with D. sulcata. The tooth at the proximal end of the lower 

 surface of the male cheliped is well developed only in large in- 

 dividuals ; the types of Alcock's species are all small, but the tooth 



