16 



A REVIEW OF VOLUTIDAE 



Alt. 50, dlam. 22 mm, 



Hab. East Australia at a depth of 36 

 fathoms, expedition of the Gazelle, 



Shell fusiform-oblong, subrostrate- 

 tapering below, rather thin, sculptured 

 with a series of shoulder nodules and very 

 fine spiral striae, stronger at the base; 

 glossy; pale flesh colored marked with nar- 

 row, vertical, somewhat flexuous lines. 

 Spire rather produced, coronate-contabulate; 

 the apex globose, smooth, obliquely coiled, 

 small. Vfhorls six, slightly concave below 

 the suture. Aperture narrow, the out^r 

 margin thickened, white, columellar margin 

 having four large and three smaller some- 

 what alternating very oblique folds. 

 Throat yellowish. Translated from German. 



Genus CALLIOTECTUM Dall I889 



Calliotectum , Dall, Proc. U.S, Nat, Mus. 

 vol. xii, p. 304, 1889. 



Genotype: calliotectum vernlcosum Dall. 



Range: Abyssal, off Ecuador and Galapagos. 



Shell with vernicose epidermis, 

 short, undifferentiated canal and no anal 

 notch or fasciole; operculum with apical 

 nucleus, increasing like that of Fnsinus , 

 but curved Instead of straight, though not 

 coiled; animal blind, with a short sac-like 

 proboscis, with no teeth or poison gland. 



Calliotectum vernicosum Dall I889 

 (Plate 25, Figure 172) 



Calliotectum vernlcosum Dall, Proc. U.S.Nat. 

 Mus., vol. xii, p. 304, pi. 5, fig- 8, 

 1889. 



Alt. 48, diam. 19 mm. 



Hab. Station 2T93, Albatross Exp., off 

 coast of Ecuador, in 74l fathoms, mud, 

 and Station 2807, near the Galapagos 

 Islands, In 812 fathoms, coral mud; tem- 

 peratures in both cases 38.4°F. 



Shell slender, fusiform, covered 

 with a brilliant chestnut-brown closely 

 adherent epidermis; whorls seven, without 



the nucleus, the tip more or less eroded 

 in all the specimens, though living when 

 taken; whorls slightly rounded, not inflat- 

 ed; sculpture chiefly of fine, subequal, 

 flattened, narrow, slightly flexuous trans- 

 verse plaits, which on the earlier whorls 

 reach forward to the suture, but on the 

 later ones become obsolete near the periph- 

 ery, and tend to disappear altogether near 

 the aperture on the last whorl of the adult 

 shell; these plaits are separated by nar- 

 rower rather deep grooves, and end at the 

 suture behind rather bluntly, though they 

 can hardly be said to coronate it; there 

 are thirty- five or forty of the plaits on 

 the penultimate whorl; suture very distinct, 

 slightly channeled, but not deep; there is 

 no anal fasciole; the aperture is shaped 

 like a melon-seed, the outer lip evenly 

 arched, projecting somewhat in front of the 

 periphery, not thickened or reflected, and 

 with no constriction for a canal; body and 

 pillar without callus; the columella 

 straight, very slender, not recurved; si- 

 phonal notch extremely shallow, hardly dif- 

 ferentiated from the aperture; interior of 

 the aperture polished, smooth, dark brown, 

 the pillar livid white or flesh color; 

 siphonal fasciole, none; lines of growth 

 not prominent, the surface showing obscure 

 faint spiral striae or scratches, but no 

 spiral sculpture. 



The soft parts are mostly yellow- 

 ish white. The foot is wide, rounded-acute 

 behind, double-edged and slightly aurlcu- 

 late in front. The proboscis is small and 

 short. The animal appears to be edentulous. 



The figure, though accurate as far 

 as the form is concerned, gives very little 

 idea of the beauty of the brilliant brown 

 epidermis and sharply incised sculpture. 



Dall placed this genus under the 

 Pleurotomidae (now known as Turririae) but 

 Thiele removed it to the present family, 

 placing it near Iredalina another genus in 

 which the shells lack columellar plaits. 

 The above description is taken from Dall's 

 paper. 



Genus FUSIVOLUTA von Martens 1902 



Pusiuoluta E, von Martens, Sitzungs beichte 

 der Gesellschaft Natur Preunde zu Ber- 

 lin, p, 237, 1902. 



