'-354 HAMINEA. 



Aperture much dilated. Var. subquadmta Monts. Subangular 

 above and below. Var. albina Monts. Entirely white. Var./er- 

 rmjiuowi Monts. Ferruginous tawny. Var. glaucescens Monts. 

 Pale yellow or greenish. 



H. HYDATIS Linne\ PI. 41, figs. 19, 20. 



Shell thin, subpellucid, oblong-oval, truncated above, rounded 

 below ; surface clear corneous or pale greenish-yellow, with slight 

 growth lines and extremely minute close wavy spiral striae. Ver- 

 tex imperforate, narrowly concave; outer lip arcuate, rounded 

 above and below, slightly thickened toward the upper insertion. 

 Columella short, vertical, rather straightened, its edge reflexed but 

 not closely appressed. Alt. 11, diam. 8 mill. 



Mediterranean Sea; Atlantic coasts of Spain and France; north 

 to South coast of England. 



Hullo, hydatis LINN., Syst. Nat. xii, p, 1183, 1766. HANLEY, 

 Ipsa L. Couch., p. 204. SOWB., Illustr. Ind. Brit. Sh., pi. 20, f. 19. 

 HOGG, Tr. Roy. Mic. Soc., xvi, pi. 13, f. 78 (dentition). Bulla 

 pi.-onn DELLE CHIAJE, An. s. Vert, iii, p. 26. Bulla %a/waGMEL., 

 Syst. xiii, p. 3432. Haminea elegans of many authors. HIDALGO, 

 Moll. Mar. Esp., p. 3, pi. 21, f. 4, 5. Not H. elegans Leach I Bulla 

 fnlliriilu* MKE., Zeitschr. f. Mai., 1853, p. 141. Haminea hydatis 

 lii ' -., DAUTZ. & DOLLF., Moll. Rouss. i, p. 515, pi. 163, f. 8, 9. 



This species is distinguished from B. navicula by its smaller size, 

 smoother surface, straighter columella, etc. The following color 

 variations, sufficiently described by their names, have been noted 

 by Monterosato: major, media, minor, oblonga, globosa, vire^ 

 ens, violacea. 



For the facts relating to Haminea elegan* see under West Atlan- 

 tic species. 



H. OKI:H.NVANA Ferussac. f 'n 



Shell similar to //. hylatia, but outer lip dilated above, rising 

 high above the vertex. Alt. about 12 mill. 



Ocean coast of France t dept. Chareiif* -//</< 'rieure (Fischer); 



Rochelle (Fe>.) ; /. of Aix (Le Bahezre) ; /. of Re (Jeffr.) ; Canary 



Is. (McAndrew) ; also reported from Faimottih (Leach); 



(Turton) and Cork Harbor (Humphreys). 



