32 HALIOTIS. 



If the sliell drawn as f. 104 belongs to this species, it is of 

 a somewhat abnormal growth and sculpture. 



64, ANCiLE, f. 65, Reeve. — Testa rotunda, convexa, antice 

 paulo attenuata, spiraliter undatim lirata ; circa sutnram pli- 

 cata, roseo-cuprea subviridis ; foraminibus parvis numerosis ; 

 spira elevata, lata, subcentrali, anfractibus rotundatis. — A more 

 convex and delicately sculptured shell than H. scutellimi. 



65. oviNA,f. 84, 85,86, Chemnitz. — Testa ovato-rotundata, 

 sublcevigata, convexo-depressa radiatim et spiraliter tuber- 

 culata, rubro viridi fuscoque picta ; spira subcentrali, sub- 

 angulata, prominenti, foraminibus prominentibus rotundis 

 tubiferis; area marginali versus angulum excavata, turn 

 spiraliter lirata ; apertura argentea, labio interno lato planato. 

 — The tubercles in some specimens run into each other, and 

 radiate like the spokes of a wheel. The foraminiferous tubercles 

 are peculiarly tubular and regular. H. papulata, as repre- 

 sented in the B. M. collection, appears to be this species in a 

 junior state. 



G6. Dringii, f. 42, Reeve. — Testa orbicularis, subdepressa, 

 flavida, rubro variegata, intus argentea, extus spiraliter seriatim 

 nodosa, tuberculis foraminiferis prominentibus, parvis ; spira 

 lata, planulata.— Orbicularly depressed, with nodules spirally 

 arranged; spire broad, foraminiferous tubercles small but promi- 

 nent ; colour yellowish, varied with red spots and flashes. 

 The shell may be only a young growth of some larger species. 



67. RUBicuNDA, f. 18, 19, G7'ay. — Testa orbicularis de- 

 pressa, fulva rubro-variegata, medio subconcava, concentrice 

 lamiuis septiformibus extantibus divisa, versus aream mar- 

 ginalem costa valida spiraliter squamoso-lirata circumvallaia ; 

 angulo foraminifera costseformi, tuberculis prominentibus, 

 rotundis ; area marginali concava, ad marginem in costam 

 tuberculatam elevata ; apertura tricanaliculata. — The most 

 remarkable character of this species is the broad solid spiral 

 rib a little past the centre from the suture, with which it is 

 connected by upright laminae. The foraminiferous ridge and 

 the tubercles upon it form a second rib, and the raised and 

 tubercular outer margin a third, all three represented ))y 

 channels in the interior. 



68. EMMiE, f. 16, Gray. — Testa fulva squamosa rubro 

 variegata, II. ruhicundcv similis, sed laminis extantibus 



