RECENT MOLLUSCA OF AUGUSTUS ADDISON GOULD 157 



tenella, Vitrina: 1846, PBSNH, vol. 2, p. 181 (Kauai, Sandwich 

 [Hawaiian] Islands, J. P. Couthouy), diam. %, alt. Ki in.; 1852, 

 USEE, vol. 12, p. 11, pi. 1, fig. 10,a-c; 1862, Otia Conch., p. 26. 

 Figured holotype USNM 20874. 



tenellum, Pisidium: 1850, in Agassiz, Lake Superior, p. 245 (Fort 

 William, Michipicoten, Ontario). In comparison to Pisidium 

 dubium Say, Gould says: "They are smaller, more elevated, less 

 sulcated, and the hinge is less robust. I had designed to apply to 

 them the specific name P. tenellum, but unfortunately the specimens 

 were mislaid before I could examine them with sufficient care to 

 give the characters with the requisite precision." Ideotype MCZ 

 19828 ex T. Prime coll. 



tenerrima Carpenter, Tapes: 1856 [1857], in Gould and Carpenter, 

 Proc. Zool. Soc. London, p. 200. See Palmer, 1958, Geol. Soc. 

 Amer. Mem., no. 76, p. 97. 



tentoriolum, Helix: 1846, PBSNH, vol. 2, p. 176 (Upolu, Samoa 

 Islands, J. P. Couthouy), lat. %, alt. % in.; 1852, USEE, vol. 12, 

 p. 63, pi. 4, fig. 54; 1862, Otia Conch., p. 23. 



The only type known of this species is a specimen in the Acad. 

 Nat. Sci. Philadelphia, no. 1935, marked "S" [Samoa], A. D. Brown 

 coll. It is slightly smaller than Gould's measurements, and was 

 figured by H. B. Baker, 1938, Bull. P. B. Bishop Mus., no. 166, pt. 

 1, pi. 34, fig. 5; ibid., 1941, pt. 3, p. 313. 



tenuicula, Chemnitzia: 1853, BJNH, vol. 6, p. 383, pi. 14, fig. 15 

 (Santa Barbara [California], E. Jewett), axis % , diam. % in.; 

 1862, Otia Conch., p. 186. Figured holotype MCZ 169393 ex 

 NYSM 42, original no. A 3112; paratype USNM 16267a ex E. 

 Jewett, figured by Dall and Bartsch, 1909, USNM Bull. 68, p. 93, 

 pi. 8, figs. 7, 7a. 



terebrale, Cyclostoma [Omphalotropis]: 1847, PBSNH, vol. 2, 

 p. 206 (Taheiti [Tahiti] and Eimeo [Moorea, Society Islands], at an 

 elevation of 3500ft., J. P. Couthouy), lat. Ko, alt. % in.; 1852, USEE, 

 vol. 12, p. 106, pi. 8, fig. 120,a-b; 1862, Otia Conch., pp. 39, 244. 

 Figured holotype USNM 5521; 2 paratypes MCZ 169394 ex NYSM 

 333, original no. G 2633; 2 paratypes MCZ 216600 ex Smithsonian 

 Inst, (printed label). 



terebrans, Neptunea [(Sipho)}: 1860, PBSNH, vol. 7, p. 326 

 (Arctic Ocean), axis 60, diam. 25 mm.; 1862, Otia Conch., p. 123. 

 NPEE. 



Gould says: "Specimen from Spitzbergen, in good condition, 

 in Mr. Cuming's collection, from which I have taken the character 

 of the lip." Mr. Peter Dance was unable to locate this specimen 

 in 1960 at the British Museum (Nat. Hist.). 



