RETUSA. 2l> 



umbilical chink ; pillar broad, flattened and curved; fold obscure. 

 (Jeffr:). 



Alt. 5o, diam. 3 mill. 

 European Seas, from Godhavn, Greenland, to the Mediterranean. 



Bulla obtusa MONTS., Test. Brit, (i), p. 223, pi. 7, f. 3. A. AD. 

 in Sowb. Thes. Conch, ii, p. 571, pi. 120, f. 20. Utriculus obtusus 

 JEFFR., Brit. Conch, iv, p. 423, pi. 4, f. 2, 3 (animal). SOWB., 

 Conch. Icon., f. 5. JEFFR., Ann. Mag. Nat. Hist. (4), vi, p. 84 v. 

 minor and (4) xix, p. 333. Cyliehna obtusa LOCARD, Coq. Mar. 

 Cotes France, p. 27, fig. 14. 



Var. IURRITA Holier. PL 23, fig. 52. 



Shell elongated, nearly twice as high as wide, slightly tapering 

 above; the spire elevated, obtusely conical, with subscalariform 

 whorls. Alt. 3-3 i mill. 



Greenland; England; Norway. 



Bulla turrita MOLLER, Ind. Moll. Groenl., p. 6. A. AD., Thes. 

 ii, p. 567, pi. 121, f. 28. Utriculus turritus LECHE, K. Svensk. 

 Akad. Handl. 1878, p. 71. U. pertenuis v. turritus SARS, Moll. Reg. 

 Arct. Norv., p. 288, pi. 17, f. 20. U. obtususv. lajonkaireana JEFFR., 

 Brit. Conch, iv, p. 424. 



Var. CANDIDULA Locard. Unfigured. 



Smaller than R. obtusa, more cylindrical, with higher spire ; last 

 whorl quite descending toward its termination, with more rectilinear 

 profile ; aperture smaller and more regularly narrow. 



Alt. 2-3, diam. lf-2 mill. (Zoc.). 



Atlantic coast of France. 



Cyliehna candidula Loc., Coq. Mar. Fr. p. 28, 1892. C. lajon- 

 kaireana Loc., Prodr., p. 72. 



This does not seem to differ materially from the preceding 

 variety. 



Var. MINOR Jeffr. 



Apex depressed, Mediterranean, 30 fms. (Jeffr.}. This form has 

 also received the name Utriculus minutissimus H. Martin (Journ. 

 de Conchyl. 1878, p. 159. -Con/. Locard, Les Coq. Mar. des Cotes 

 de France, p. 29). It is characterized, according to Monterosato, 

 by the small size, and median contraction ; the normally flat spire 



