v PHOPLEURA, 



3OWB., M n. Hist. 1*40, p. 287, Suppl. ])1. xvi, 



f. 2; I'. /.'>. 1841, p. 61; Conch. Illustr., f. 68. REEVE, Condi. 



.1. 14, 1'. 7-"). Mnii^f'-ri'i ,*j,ini'j'ra GRAY, Guide Moll. B. M., 

 ]). 184 (1857). Ac.itnthojJi ">-<i .*/ f !it!<i'-rii Cri:., MS. and DAI.L, ! 

 U. S. Nat. Mns. 1*S2, ]>. 80. Chiton (Acanthopleura) spiniger 

 SMITH, Zool. Coll. H. M. S. ' Alert/ p. 81 (1884) ; P. Z. S. 189J , p. 



-Awmthtif,/, urn *i>ini<j<-r HADDON, Challenger Polyplac., p. 

 I':). Ac'tnfh'ijil''iira balnnsce ROCHEBR. Bull. Soc. Philomath. Paris, 

 1881-2, p. 1!7. 



oil-nil! ( JIIAY, Guide Moll. B. M., p. 184 (no descrip- 

 tion or figure). ?? Chiton gemmatus BLAINV., Diet. Sc. Xat. xxxvi, 

 p. :.44. 



It is now impossible to prove that this is, or is not, the 



>/"> of Lin IK' ; but any one who will consult the original 



description, " C. testa octovalvi striata, corjtore su bactdeato" then turn 



to Riimphius' figure cited as an illustration, will be prepared to 



acquiesce in Hanley's suggestion (Ipsa Linn. Conch.) that the 



's be dropped us unidentifiable. Gmelin had no better informa- 



tion upon this species than we; and therefore his additional citations 



jures are valueless. The mere fact that the figure cited by 



Limn' represents an oriental species is offset by the absolute impos- 



sibility of knowing that it was an Acanthoineura. 



Besides the localities given above, this species has been reported 

 from Sue/, by Is>el (Mai. Mar Rosso p. 235, and see also Cooke, 

 Ann. Ma-. N. II. 1885, p. 276), from Aden by Haddon (Challenger 

 Polyplar., j>. 24). It has been figured from the Red Sea by Savigny 

 (see pi. ">, ii.u r >. 4, 1-2 of his folio). Probably Savii_ r ny's \\^. 7, 1-3 

 of the same plate represent a young shell of the same, although I 

 havr sri-n none closely corresponding in sculpture. The eyc> arc 

 distinctly drawn by the artist, a rather remarkable circumstance 

 when we remember that no subsequent illustrations of Chitons show 

 them ! Additional localities are Si n- /rI<ni<l reported by (. A < \. 

 and Jfnl.-mlii'li, .Juj,,ni by Sclnvnck (Amurl. Moll. p. 27.")': but 

 two localities must lie regarded as doubtful until confirmed by 

 i fri'-h specimen.- or a critical re-examination of the specimens 

 and data in each < 



The study of the Indo-Paeitic Acanthopleiiras may be somewhat 

 >implilicd ly the elimination of i'l) A. f>or/>o, ,!,;/, characteri/ed by a 

 ail-valv- and (2; the " Aninth- 



