222 



spirally incurved. Crowded axial liiellae, about as wide as 

 their interspaces cross the carinae : every sixth or seventh one 

 is strong ; the next two or three are finer, and thos-e following 

 gradually increase. At the intersections are minute tubercles, 

 which at intervals are comparativ.ely large. The basal axiale 

 are less unequal. Aperture quadrangularly hemispherical, 

 produced at the baso-columellar junction. Outer lip corru- 

 gated by the carinae. Columella concave, with a tooth-like 

 prominence below. Inner lip valid, applied to the base on 

 its upper half. Perforation well marked, somewhat rimate. 



Dim. — Alt., 3'6 mm. ; diam., 2'9 mm. : aperture, 2*1 mm. 

 by 1*6 mm. 



Locality. — Type, 40 fathoms, off Beachport. dead, with 

 twD co-types: 110 fathoms, 2 dead. 



Diagnosis. — From Lippisfes separafisfa, Dillwyn. It is 

 much smaller, and more solid, the protoconch is much smaller : 

 the whorls increase less rapidly, have three lirae on the spire 

 and four on the body- whorl, are lira ted on the infra-sutural 

 slope instead of smooth, have no polygonal shape, the base is 

 lirated instead of smooth, axial lirellas tuberculat-e the carinae 

 and continue to the columella, and the umbilicus is rimat/e. 



Genus Seguenzia, Jeffreys. 

 Seguenzia polita, Verco, spec. 7iov. PI. ix., tigs. 3, 4, 5. 

 Shell white, smooth, glistening, turbinate, of six whorls. 

 Protoconch one and a quarter whorls, homostrophe, smooth, 

 round. Spire gradate, flatly concave, from simple suture 

 (with a linear furrow) to central angulation, which is scarcely 

 keeled ; then sloping barely concave to the lower suture, first 

 two whorls with fine numerous radial striae from suture to 

 angle, becoming gradually obsolete as microscopic accremen- 

 tal lines on the later whorls. Body-whorl with a central 

 carina, which forms the suture : a second somewhat smaller 

 some distance anterior, somewhat concave between ; a third 

 smaller and less distant ; then six concentric lirae to the per- 

 foration, which is small and rimate. Aperture subquadrate; 

 outer lip with a deep, narrow sinus at the suture, and a deep, 

 wide notch at the junction of the basal and outer lip, a some- 

 what shallower one between them, and a smaller notch at the 

 junction of the basal lip and the columella, wiiicli ivs trun- 

 cated so as to form a blunt tooth. 



The spiral angulation ends, at the deepest part of the 

 posterior sinus : the peripheral carina in the deepest part of 

 the central sinus ; the second carina forms the posterior boun- 

 dary of the baso-lateral notch, whose deepest part lies be- 

 tween the third carina and the first basal lira. The 

 columella is concave, smooth, thick, ])olished, and expand- 



