330 IIAZATLAN UKITALVES 



regarded by \v.?.ny competent coneliologists as part of a gigantic 

 Cae'iTH, anrl is liis "PCgecuin, no. 9" of my ms. catalogue. I 

 doubt -wlieliier any of ttess objects be of Molluscous origin. 



Family TUEEIIELLID^. 



Genus TUEEITELLA, Lam. 

 H. A' A. Ad. Gen. vol. i. p. Zol.—Phil. Sandh. Conch, p. 164. 



379. TUEHITELLA G0NI0ST03IA, Val. 



Turritella gonostoma, Val. Rec. Ohs. Sumh. \o\. ii. p. 275. 

 T. goniostoma, Kien. Icon. Conch, p. 21. no. 16, pi. 10, f. 1, 



(bene).— &'irt, Mus. vol. iii. pi. 56, f. 26.— i^i-e. Conch. Ic. 



pi. 3, sp. 10, f. 10, a, b.—Mkc. in Zeit.f. Mai. 1850, p. 165, 



no. 11. 

 Haustator (TurriteUa) goniostoma, H. Sf A. Ad. Gen. i. 352. 

 T Turritella lentiginosa, Rve. loc. cit. pi. 3, sp. 9, (Payta, 



coarse sand, about 5 fm. Cuminri) — H. Sf A. Ad. Gen. i. 351. 

 ? + T. Hookeri, Mke. loc. cit. no. 12 :— non Bve. loc. cit. pi. 11, 



sp. 61, (Antarctic Seas, Capt. Ross.) 

 Comp. T. Banksii, Rre. loc. cit. pi. 4, sp. 15.— C B. Ad. Pan, 



Shells, p. IGO, no. 210.— = Haustator B. H. ^ A. Ad. Gen. i. 



352 

 = T."Broderipiana, D'0)7}. B. M. Cat. Moll. p. 31, no. 279. 



" = T. Califoruica, Brod. [!] Pyoung." 



This species wai first described from a small shell, an inch 

 long, with 12 turns of spire, brought from Aeapulco by Hum- 

 boldt & Bonplaiid. Its "W. Indian analogue is TurriteUa 

 meta, Rve. (v. Phil, in Kusf. in loco.) The form distin- 

 guished as T. lentigiiiosa, having the colouring "in short, 

 transverse, linear dashings" is not so aberrant as many here 

 catalogued. The T. Banksii has rather a more delicate style 

 of sculpture, but is not improbably only a varietj- of the same 

 species. Of the changes of colour and pattern, a sketch is 

 given in the list below. In shape, it is either nearly smooth 

 (except spiral stria;) with flattened whirls ; or with the whirls 

 moderately swelling ; or, more usually, with an obtuse keel on 

 the shovdder, and a few others below. The base is always 

 ribbed, and the periphery more or less sharply keeled. It is 

 common to find shells beginning with one form and pattern. 



