Miscellaneous. 447 



accused of having made ; and I would rather repeat the error than 

 be so suspicious and incredulous of the accuracy and trustworthiness 

 of my fellow-labourers in science ; and I hope some unprejudiced 

 Indian zoologist Avill kindly examine and compare the head of T. 

 Phayrei with the figure of the skull, or send to the British Museum, 

 that we may make actual comparison, and I should be very glad to 

 adopt the result. 



Note on the Habitat of Diadema octocula. 

 By A. G. Butler, F.L.S. «fec. 



In the 'Annals and Magazine of Natural History' for Jan. 1869 

 (p. 19, pi. 9. fig. 5) I described and figured a new species of Diadema 

 under the name of D. octocula : the locality, roughly scribbled on a 

 label attached to the insect, appeared to be " Island of Toloya or 

 Tologa ;" and though this locality was new to me and I could not 

 discover it on any map, I supposed it possible that it might be the 

 name of some obscure islet, and therefore published it as " Island 

 of Tologa." 



Subsequently, in a paper on the genus Diadema in the ' Trans. 

 Entomological Society,' Mr. Wallace suggested that the correct 

 locality might be Gilolo ; he, moreover, differed from me respecting 

 the sex of the insect, which, notwithstanding its female aspect, he 

 stated to be a male. 



In the ' Stettiner Entomologische Zeitung ' for January to March 

 1869 (p. 71. n. 16, pi. 4. fig. 17), Dr. Herrich-Schaffer described and 

 figured a new Diadema under the name of D. fonnosa * ; it differs 

 from my D. octocula only in its smaller size, more slender body, and 

 in the j)resence of three marginal spots towards the apex of the 

 front wings, and can therefore scarcely be a different species ; it 

 may, I think, be the male of my insect. The habitat given is 

 " Yanua Yalava." 



Whilst examining some of the smaller Crustacea in the British- 

 Museum collection, I have stumbled upon a small crab bearing a 

 label with the locality " Totoya, Fiji Islands," which, I think, must 

 be the correct reading of the habitat attached to the type of D. 

 octocula. 



Note on Chlamyphorus truncatus. By Dr. J. E. Gray, F.E.S. &c. 



Mr. Edward Gerrard, jun., has lately procured for the Museum a 

 specimen, in spirits, of the Pichiacoo from Mendoza. He has pointed 

 out to me that they vary in the extent of the attachment of the 

 dorsal shield to the middle of the back. In one specimen it is 

 attached along the whole length of the dorsal line ; in the one in 

 the Museum it is only attached in two places, about a quarter 

 of an inch long — one over the shoulder and the other in the middle 

 of the back. 



* This species seems to have been overlooked by Mi*. Wallace. 



