SUBULINA. 341 



Subfamily STENOGYRIN^. 



Genus SUBULINA, Beck. 



Subulina, Beck, Index Moll. 1837, p. 76 (in part) ; Gray, P. Z. S, 

 1847, p. 177; Herrmannsen, Ind. Gen. Malac. ii, 1849, p. 522;, 

 Pilsbry, Man. Conch, ser. 2, xviii, 1906, pp. 71, 220. 



TYPE, Bidimus octonus, Bruguiere. 



llanye. Tropical America and Africa ; one species octona - 

 introduced into India. 



" Shell imperforate at all stages of growth, narrow, turrited, or 

 subulate, thin, corneous or brownish, usually more or less trans- 

 lucent; apex obtuse, rounded; the embryonic shell either smooth,, 

 plicate below the sutures or vertically ribbed. Last whorl angular 

 or rounded at the periphery. Aperture small, oblique, ovate, the- 

 columella conceive above, obliquely or abruptly truncate at base. Eggs 

 with a calcareous, oblately spheroidal capsule. 



" Beck originally proposed the name Subulina for the following 

 species : (i) S. cyanostoma Riipp., (2) turritellata Desh., (3) stria- 

 tella Rang, (4) malayuetana Hang, (5) monoceros Beck, (}propinqua 

 Beck, (7) terebraster Lam., (8) octona Oh., (9) crotalariae Schum., 

 (10) carinulata Beck, (11) pupaeformis Beck, (12) S. ? sericata Beck^ 

 The first species of the list was made type of Homorus by Albers, 

 1850; species 6, 10, 11, 12, are nude names; 7 is an Obeliscus ; 

 2 and 4 are species of uncertain generic relationships ; leaving: 

 species 3, 5, 8, 9 to represent the group of /S. octona. Gray in 

 1847 and Herrmatmsen, 1849, agreed in selecting as type of 

 Subulina the commonest and best known species, S. octona a 

 course approved by practically all later writers who have 

 recognized the group." (Pilsbry.) 



301. Subulina octona, 



Bnlimus octonus, Bruguiere, Encycl. Meth., Vers, i, 17^9, p. 325. 



Achatina octona^ Gray, Ann. Philos. N. s. ix, 1825, p. 414 ; Menke r 

 Syn.Meth. ed. 2, 1830, p. 29; Potiez & Michaud, Galerie Douai, 

 i, 1838, p. 129, pi. 11, figs. 13, 14; Orbigny in Ramon de la 

 Sagra, Hist. tis. pol. nat. Cuba, Moll, i, 1841, p. 168, pi. 11,. 

 tigs. 4, 6; Pfeiffer, Mon. Helic. Viv. ii, 1848, p. 266; Reeve, 

 Conch. Icon, v, 1849, Achatina, pi. 17, fig. 84 ; Sowerby, Conch.. 

 Man. 1852, fig-. 514; Pfeiffer, Couch.-Cab., Achatina, 1854, p. 342,, 

 pi. 37, figs. 19, 20. 



Subulina octona, Beck, Index Moll. 1838, p. 77 ; Adams, Gen. Rec, 

 Moll, ii, 1855, p. 110, pi. 71 , fig. 3 a ; Pilsbry, Man. Conch, ser. 2, 

 xviii, 1906, p. 72, pi. 12, iigs. 8, 9 ; p. 222, pi. 39, tigs. 28-37, 



OJj *iU. 



Stenogyra (Subulina) octona, Kobelt, Illustr. Conchyl. Buch, ii, 

 1878, p. 276, pi. 84, tig. 29 ; Pfeiffer & Clessin, Nomencl. Helic. 

 Viv. 1881, p. 326. 



