EMARGINULA.— Plate IV. 



apex bent backwards, post-medial, scarcely bent 



inwards. 

 J. SowERBT. Min. Con., PI. 33 

 Emarginula solidula, Costa. 

 Hab. Great Britain, Mediterranean. 



Species 27. (Fig. b, c, PI. VIH., Mus. Brit.) 



E.MAiiiiiNUL.A. EMENDAT.\. E7mi. testct ovali, conica, lata, 

 fused ; apice elevato, incurvo, valde post-mediani ; 

 costis cequalibus, rotundis, crebris ; Jissurd elongatd, 

 angustd, prope marginem amtracta, ad marginein 

 clausd. 



The men'ded Emarginula. Shell oval, conical, broad, 

 brown ; apex elevated, incurved, much behind the 

 middle ; ribs equal, rounded, close ; fissure 

 elongated narrow, contracted near the margin, 

 closed at the margin. 



SowEur.Y. Thesaurus Conchylioruni. Emarginula, sp. 31, 

 f. 11. 



ll„h. ? 



By the curious way in which the edges of the fissure 

 are drawn together towards the margin till closed, this 

 shell becomes a sort of link between the genera Rimula 

 and Kiiiiirgiinilii. 



Species 28. (Mus. Brit.) 



KGiNULA cucuLLATA. Ema. testd ovatd, elevatd, 

 albidd, anticc contractd ; costis validis postice rnagis 



distantihus, radiantibus, et liris concentricis reticu- 

 latd ; apice elevato retrorsim, arcuato, multo post- 

 mediani ; Jissurd latd, elongatd, incisd. 



The hooded Emarginula. Shell ovate, elevated, 

 whitish, anteriorly contracted, reticulated with 

 strong radiating ribs more distant posteriorly and 

 concentric ridges ; apex elevated, arched backward, 

 much behind the middle ; fissure broad, elongated, 

 incised. 



A. Adams. Proc. Zool. See, 1851. 



Hab. Singapore. 



Found on larger shells in five fathoms of water. 



Species 2'J. (Fig. a. b, Mus. Brit.) 



Emarginlua Adamsiana. Ema. testd pallide rosed, 

 ellipticd, costis magnis rugosis, et parvis intermediis 

 radiantibus, et lii-is concentricis incequalibus sca- 

 brosis cancellatd; dorso arcuato; apice post 

 marginem posiicum declinato ,- Jissurd longiitsculd, 

 incisd. 



Adams's Emarginula. Shell pale rose, elliptic ; can- 

 cellated with large rugose radiating ribs, and 

 unequal scabrous concentric ridges ; back arched ; 

 apex bent over beyond the posterior margin ; 

 fissure rather long, incised. 



SowERBY. Thesaurus Conchyliorum. Emarginula, sp. 

 20, f. 27, 28. 



Ilab. Japan. 



This species slightly resembles Emarginula rosea, but 



the ribs are much lewer and coarser. 



