286 DIAPHANA. 



Utrittuhptii tleitnintr'mtn LKCHK, Kongl. Sv. Vet. Akad. Handl., 

 xvi, p. 74, pi. 1, f. 20, , b, c (shell), f. 20 d (dentition), 1878. 

 Diaphana densistriuta AURIVII.I.H s, Vega Exped. Vetenskap. 

 lakttagelser, iv, p. 371. 



D. GLOBOSA Loven. PL 26, fig. 75. 



Shell very thin, vitreous, subglobose ; base obliquely rounded ; 

 vertex narrowly truncated, narrowly perforated, the spire nearly 

 concealed. Aperture as long as the shell, narrow and supine above, 

 expanded below ; outer lip produced above the vertex and subangu- 

 late, obliquely arcuate below ; columella flexuous ; umbilicus dis- 

 tinct. Alt. 4 mill. (&*). ScaiuHmiviii. 



AmphixpJtyra globosa LOVEN, Ind. Moll. Scant!., p. 11 (Ofv. 

 Kongl. Vet. Akad., 1846, p. 143). Diaphann t/lobosa SARS, Moll. 

 Reg. Arct. Norv., p. 290, pi. 18, f. 4 (shell), f. 3 c (animal) ; pi. xi, 

 f. 12 (dentition). Utriculus ylobosiis SOWB., Conch. Icon., xviii, f. 

 2. Utricuhpsis vitrea M. SARS, Bidrag til Kundskab Christiania- 

 fjordens Fauna, ii, p. 65, pi. 11, f. 16-18 (shell only ; not f. 15, ani- 

 mal, which is Phi/hie riff en, q. v). 



D. HIEMALIS Couthouy. PI. 59, fig. 28. 



Shell minute, globose, thin and fragile, subtranslucent, horn col- 

 ored ; body whorl very convex, widest in the middle, narrowly 

 truncated at the vertex, which shows a minute umbilical perfora- 

 tion. Aperture narrow above, rising well above the vertex, broad 

 below ; outer lip strongly sinuous, receding toward the upper inser- 

 tion, rising high above the vertex of the body of the shell ; colum- 

 ella long, thin, slightly sinuous, partially closing the narrow umbil- 

 icus. Alt. 2-i, diam. 2 mill. 



M<iu,< {<> Massachusetts Bay ; Seandimtvvi. 



Bnlln hit-mtdi* Corrn., Bost. Journ. Nat. Hist., ii, p. 180, pi. 4, 

 f. 5. DEKAY, N. Y., Moll., p. 18, pi. 35, f. 335. OLD., Inv.Ma-.. 

 p. H>3, f. 100. Diitplninn /tiemnlis SxiMPSON, Check-Lists, p. 4. 

 \V. U. Binn. in Glds. Inv. Mass., p. 216, f. 506. SARS, Moll. Reg. 

 Arct. Norv., p. 291, pi. 18, f. 3. 



More globose than any of the preceding species. The figure is 

 drawn from a Massachusetts specimen. 



D. MY i. A Petterd. l\lignrcd. 



Shell globose, very thin, semitransparent, milky-white, shining ; 

 whorls 4, spire small, scarcely projecting; longitudinally striated 



