2/8 MR. E. A. SMITH ON THK [-^P'"- ^> 



merely as a subgenus of MatJiilda.''^ It nertainly either is or is not 

 the same ; and presuming them to be identical, Cinguiina must be 

 retained, having been published five years previous to MatJiilda ; 

 but should it be considered that they differ sufficiently in sculpture 

 to be placed in different sections, Mathilda and not Cinguiina should 

 take subgeneric rank. 1 have this advantage over Mr. Watson in 

 knowing that the character of the apical whorls is the same in both, 

 as one of the specimens of Cinguiina circinala in the Museum still 

 retains its nucleus. 



The sculpture of this species, the type of the genus, is certainly 

 very uidike that of most of the known species of Mutliilda, consisting 

 of strong spiral ridges, with only feeble lines of growth in the 

 interstices. C. spina of Crosse and Fischer is very closely related, 

 but quite distinct. Owing to the more cancellated surfaces of 

 Mathilda, it may be convenient at present to retain it as a section 

 or subgenus. 



Odostomia glaphyra. (Plate XXIII. fig. 23 ) 



Testa ovato-cylindracea, albo-pellucida ; unfructus 5—6, apiculis 

 convexus, involutus, catteri parum convexi, Icevigati, sufura 

 mediocriter projunda, vix obliqua, sejuncti, uUimus penult, 

 latitudine subcequans ; apertiira parva, inverse auriformis, 

 longit. totiiis g subcequans ; columella plus minus leviter con- 

 torta, in exemplis aduUis callo tenui labro juncta. 

 Longit. 2\ millim., diam. 1. 



Although under an ordinary lens this species appears to be smooth, 

 it is in fact finely spirally striated. It is sufficiently pellucid to 

 allow of the columella being indistinctly visible up the spire, the 

 apex of which is large and obtuse. 



EuLiMA FUSCEscENs. (Plate XXIII. fig. 24.) 



Testa parva, acuminata, recta, pallide fuscescens, polita ; anfractus 

 octo, levissime convexi sutura sintplice vix obliqua sejuncti, ulllmus 

 ad medium magis convexus, mediocriter elongatus ; aperturu ovata. 

 superne acuminata ; perist. tenue, inferne leviter effusum, mur- 

 gine columellari paulo rejiexo, superne callo tenui labro juncto. 



Longit. 2| millim., lat. fere 1 ; apertura f longa, ^ lata. 



This little species is peculiar on account of its colour, a rare feature 

 in this genus, and its short erect form. 



EuLiMA ATLANTiCA. (Plate XXIII. fig. 25.) 



Testa nivea, elongata, aut recta aut superne plus minus dextrorsum 

 vel sinistrorsum curvata ; anfractus \\-\l, fere pluni, sutura 

 levi sejuncti ; ultimus in medio curvatus, subbrevis ; apertura 

 parva, ovata, superne acuminata ; columella paulo incrassata, 

 refexa, labro callo tenui juncta ; labrum in medio prominens, 

 prope suturam haud profunde sinuatum. 



Longit. 7g 7nillim., diam. 2; apertura 2 longa, 1 lata. 



This species has a less slender spire than JS". intermedia, Cantraine, 

 is of a shorter and stumpier growth, and the reflection of the coin- 



