MALACOZOA. GASTEROPODA. 343 



Genus Stylina. After Lacuna. P. 56. 



Shell subglobose, spiral, thin, with the spire short, 

 convex, but with a prominent apex ; the aperture large, 

 roundish, with the outer Up thin, the inner incomplete. 

 Named from the styliforni apex. Fleming. 



1. Stylina stylifera. Acuminate Stylina. 



Shell nearly globose, very thin, transparent, glossy, yellow- 

 ish-brown, of four convex turns, the last ventricose ; the spire 

 very short, convex, but with a conspicuous styliform apex ; 

 the suture distinct ; the aperture very large, roundish, the 

 peristome incomplete ; the columellar lip thin, reflexed, the 

 outer lip semicircular, very thin ; no umbillicus. Length two- 

 twelfths of an inch, breadth nearly as much. 



This remarkable shell has an extremely delicate texture, of 

 a horny appearance, with apparently very little lime in its 

 substance, and presenting numerous regular cracks. In this 

 respect it resembles Helix fusca, and Coriocella flexilis. Were 

 it not marine, it might be considered as belonging to the genus 

 Helix, which it further resembles in being, as is stated, des- 

 titute of operculum. Otherwise it appears to be allied to 

 Phasianella. The species was discovered by Dr. Turton, who 

 found it at Torbay, attached to Echinus esculentus. 



The specimen described above was found by Mr. Alexander 

 Beaton, at Aberdeen, adhering to an Actinia, brought up by 

 the lines, in February, 1843. 



Phasianella stylifera. Turt. Zool. Journ. i. 367. PI. 13. f. 11.— 

 Velutina stylifera. Flem. Brit. Anim. 326. 



Genus Eulima. P. 55, 141. 



Eulima decussdta. Decussated Eulima. 



Shell oblongo-turrite, tapering to a rather blunt point, 

 of about eight slightly convex, subpellucid turns, which 

 are transversely plicato-striate, and marked with fine, 

 distinct, spiral striae. Decussdtus, with intersecting 

 grooves or ridges. 



Shell turrite, oblong, uniformly tapering to a rather obtuse 

 point, of eight little-convex, glossy, subpellucid, white turns, 

 which are distinctly separated by a not-deeply impressed 

 suture, and decussated by transverse rather faint ridges or 



