418 MR. E. A. SMITH ON SHELLS FROM ADEN. [JunC 16, 



151. Crepidula (ErGjEa) walshi, Hermannsen. 



Hub. Cevlon and Singapore {Reeve); A.^sab {Garamagna). 



I;i2. Calyptr^a (Galerus), sp. inc. 



A single specimen is all I have seen of this apparently new species. 

 It is much elevated, cap-shaped, dirty whitish externally and tinted 

 with purple inside, especially towards the apex. It is radiately ridged 

 and concentrically striated with wavy lines of growth. The internal 

 process is small, slender, compressed, and placed on the side towards 

 which the apex inclines. 



lr)3. Amalthea acuta (Quoy & Gaimard). 

 Hub. Indian and Pacific Oceans. 



154. Strombus TRicoRNis, Lamarck. 



Hub. Red Sea, Bourbon, Seychelles, Philippines. 



155. Strombus gibberulus, Linn. 



Sab. Aden (Caramaffna); Red Sea, Assab, Indian Ocean, Philip- 

 pines, Polynesia. 



156. Strombus luhuanus, Linn. 



Hab. Red Sea, Assab, &c. as for S. gibberulus. 



157. Strombus floridus, Lamarck. 

 Hab. Same as preceding species. 



158. Strombus dentatus, Lim., var. 



Hab. Red Sea, Indian Ocean, &<•. 



The specimen from Aden belongs to the variety named /S. eleguns 

 by Sowerby. S. ruppellii, Reeve, is another variety. 



169. Strombus yERBURYi. (Plate XXXIII. fig. 5.) 



Testa parva, subfusiformis, alba, plus minus iutescenti balteata ; 

 spira gi-acilis, producta^ longit. totivs | subcequans ; anfractus 

 normales circiter 9, supertie concavi et marginati, supra 

 medium rotunde angulati, infra unguium fere recti, longi- 

 tudinaliter plicati, transversxmque sulcati ; pliae vel costce 

 numerosce {in anfr. permit, ad 24, in ultimo 16-17, inferne 

 sensim evanescentibus paucis labrum versus, cceteris majoribua 

 et magis distanfibus, superneque subnodosis), paucce supra 

 spiram vuriciformes ; sulci regulares, supra et inter castas 

 continui, interstitia via: cequantes ; anfr. ultimus brevis, basim 

 versus paulo constricius ; labrum dilatatum, ad inarginem 

 anfractus svperiorem productum, intus et extus incrassatum, 

 sulcatum, ad marginem acutum; aperiura angusta, alba; 

 columella callo crenulato tenui rvfo notato induta. 



Longit. 35 millim., diam. maj. 19. 



This species recalls to mind 5. cancellatus of Pease, a Sandwich- 

 Island form. It differs in colour, in the greater length ot the s] ire, its 



