A REVIEW OP THE VOLUTIDAE 



67 



equal strength and spacing on the early 

 whorls, but become less so on the later 

 whorls; on the last they are a little 

 stronger on the basal half than on the pos- 

 terior portion thereof. Aperture elongate- 

 oval, strongly channeled anteriorly and 

 feebly so at the posterior angle; outer lip 

 thin at the edge, somewhat sigmoid, being 

 protracted in the middle, columella with 

 two strong oblique folds. 



Holotype (figured herewith) in U.S. 

 National Museum, no. 382779, has five post- 

 nuclear whorls. 



Genus BATHYAURINIA Clench and Aguayo 19^0 



Bathyaurinia' Clench, and Aguayo, Memorias 

 de la Sociedad Cubana de Historia nat- 

 ural, vol. Ik, no. 1, p. 92. 



Genotype: Aurtnia torrei Ptlsbry. 



Range: Off Cuba. 



Shell elongate, shining, usually 

 shovildered and with nodules or sub-costae 

 whorls. No columellar folds or plaits; 

 radula exceedingly small, (2mm.) consist- 

 ing of a single row of Rachidian teeth. 

 The mantle very probably envelopes the 

 shell . 



Bathyaurinia torrei Pilsbry 1937 

 (Plate 7, Figure 56) 



Aurinta torrei Pilsbry. Naut., vol. 51, 



p. 37, Pl. 4, fig. 1, 1937. 

 Bathyaurinia torrei Pilsbry. Mem. de la 



Soc. Cubana de Hist. Nat., vol. 14, no. 



1, p. 92, 19^0. 



Alt. 113, diam. 28 mm. 



Hab. Off Cayo Frances, Caibarien, Cuba In 

 10 fms. Elsewhere off Cuba up to 265 

 fms, ? 



Shell fusiform, anterior canal 

 long, glossy; color pale buff, darkening 

 on anterior canal to light salmon; first 

 two whorls white, ornamented with trape- 

 zoidal spots of brown fading to rust color 

 below the suture; nucleus consisting of a 

 short projecting point; axial folds most 



prominent 'at the shoulder, about fifteen 

 such folds on the penultimate whorl; aper- 

 ture tinted like exterior. 



Bathyaurinia piratlca 



Clench and Aguayo 19^0 



(Plate 7, Figure 57) 



Bathyaurinia piratlca Clench and Aguayo, 

 Memorias de la Sociedad Cubana de His- 

 toria Natural, vol. l4, no. 1, p. 93, 

 pl. 15, fig. 2, 1940. 



Alt. 93.5, dlara.4l.8mm. (Holotype). 



Hab. Off Punta Alegre, Camaguey, Cuba in 

 210 fathoms. 



Holotype in the Museum of Comparative Zool- 

 ogy, no. 135235. 



This species appears to differ 

 rather sharply from B. torrei by being 

 much larger, possessing finer sculpture 

 and having a broadly rounded and smooth 

 whorl shoulder. The color is pinkish- 

 yellow, much as in torrei , 



Subfamily HALIINAE 

 Genus HALIA Risso 182 6 



Ealia Risso, Hist. Nat. Eur. merld. iv, 52, 



1826. 

 Prtamus Deshayes, I838, Lam. edit., ii, 



viii, 299, 1838. 

 Hal la. Fischer: Monographic du genre 



Halia, Jour, de Conch; 2nd Ser. Ill, l4l. 



Genotype: Balla priamus Meuschen . 



Range: Atlantic Ocean off Spain, Portugal 

 and probably northwest Africa. 



After discussing various patholog- 

 ical and diseased Volutes, Dall suggested 

 that the genus Balla may be the last term 

 of degeneration, having lost all of the 

 plaits in Its shell and holding much such 

 a relation to Aurinla as does Gulvlllea of 

 Watson, also a degenerate type. As in 

 Barpa the posterior sinus Is not homologous 

 with that of Turrls but merely permits the. 

 passage of a fold in the mantle. 



