AMAUROPSIS ABEIHEXSIS. 17 



and curved, posteriorly biangulate ; outer lip simple; columella excavated, 

 showing a chink-like umbilical opening. 



This species is described from a single specimen of the following dimen- 

 sions : length (nearly entire), 39 mm.; greatest width, 2Smm. ; length of 

 body-whorl slightly shortened, 21 mm. ; length of spire, 18 mm. Coll. Bird. 



Locality and Posiimi. — Abeih ; from the arenaceous portion of the Turo- 

 nian Marl. 



Amaviropsis Abelhensis, sp. uov. 



Plate I. figs. 2 a, b. 



Testa su1)(jloJ)osa ; spira brrvis, ucuminata : anfradm sex, suhconvexi, suttira 

 angiista excavata sejuncti ; vltimus valde iiifatus, ad medium latissimus, latior quam 

 longior ; superficies striis incrementi crasse notata : apertura otxjvata, dilatata, postice 

 angustata, antice lata ac rotuudata ; labium tenue ; columella rimata et ad tennina- 

 tionem furccda. 



Shell subglobose ; spire short, acuminate : Avhorls six, sabconvex, sepa- 

 rated by a narrow but excavated suture ; the last whorl greatly inflated, 

 Avidest at the middle, broader than long ; sur&ce coarsely marked with strife 

 of growth : aperture obovate, expanded, narrowed behind, in front wide and 

 rounded; inner lip thin; columella fissured, and at tlie end forked. 



Single specimen. Length, 24 mm. ; length of last whorl, 18 mm. ; width, 

 20 mm. 



Like Eusjnra pagoda Forbes, 1846 (Trans. Geol. Soc. Lond., VIT, p. 13G, 

 PL xii, fig. 14), this specimen has the posterior edge of its volutions rounded 

 and descending into a narrow canaliculate suture. The spire is less elevated 

 than in pagoda, and the last whorl is relatively much larger. The shell most 

 resembles E. spissata Stoliczka (Cretac. Cast, of So. India, p. 303, PI. xxii, figs. 

 3, 4), the body-whorl of which, however, has the surface punctate, is more 

 gradate, being flattened behind and upon the sides near the sutiu-e, and is less 

 ventricose. Meihensis and spissata agree in proportions of spire and form of 

 aperture, and both have the columella anteriorly flattened and distinctly 

 grooved; but in spis.sata it is not fi.ssui'ed, while in the present species the 

 groove ends behind in a chink-like umbilicus. E. lirata Sow. (also Creta- 

 ceous) differs from both the last mentioned species in having a deep and 

 conspicuous umbilicus, as well as in other respects. 



More nearly than .4. sutjcatialiculata and greiduta, the present species corre- 

 sponds to the recent typical Amauropsis in the character of its suture and 



3 



