4'26 MR. E. A.SMITH ON SHELLS FROM ADEN. [June Ifi. 



210. Telmna (Tellinella) madagascariknsis, Gmelin. 

 Hah. Madagascar. 



211. Tellina (Tellinella) inflata, Chemnitz. 



Hub. Philippine Islands, China Sea, Mauritius, Red Sea, east 

 coast of Africa, Nicobars, Ceylon, &c. ; Port Curtis {Brit. Mus.). 



212. Tellina (Angulus?) adenensis. (Plate XXXIII. 

 %• 8.) 



Tesfa planissima, oblonga, antice rotundata, postice acuminata, 

 fere aqvilateralis, roseo-albida, umbones versus plus minus 

 aurantio tincta, postice radio albo angusto ornnta ; valvce nitidce, 

 lineis incrementi concentricis tenuiter striatce (slriis prope 

 marginem posticum validioribus, aliisque ad medium obliquis), 

 intus et extus radiatim substrintce ; margo dorsi anticus Icviter 

 declivis, vix excurvatus, posticus oblique descendens, rectus, 

 cum margiyie posteriore unguium obtusum formans, ventralis 

 parum arcuatus, postice vix sinuatus ; pagina interna alba, 

 superne ante apices aurantio tincta, lira postice radiante 

 instructa ; denies cardinales valvce dextrce tres divergenies, in 

 sinistra duo, laterales nulli ; sinus pallii maximus, usque ad 

 cicatricem anticarn producfus, supra medium valvce angulatus. 

 Longit. 45 millim., alt. 26|, diani. 7- 



T. armata, Sowerby (Conch. Icon. fig. 264), the type of which is in 

 the British Museum, is somewhat like the present species, especially 

 in colour, but is less acuminate posteriorly and its hinder dorsal 

 margin is not so sloping. 



Besides the fine concentric lines of growth, T. adenensis exhibits 

 oblique striae upon the front half of the shell, which terminate about 

 the middle of the valves. The striae on the posterior dorsal slope 

 are considerably stronger than anv on the rest of the surface. The 

 raised ridge on the inner surface of the valves, which extends obliquely 

 from the umbones towards the posterior end of the ventral margin, 

 forms the white ray which is so conspicuous on the outer surface. 

 Of the three teeth in the right valve, the front one is the longest, 

 the central smallest, and the hindmost bifid. In the left valve the 

 posterior tooth is very thin, whilst the other, which falls perpendicular 

 under the apex, is much stronger. 



213. Tellina (Angulus?) subpallida. (Plate XXXIII. 

 fig. 9.) 



Testa incequilfiteralis, oblonga, antice rotundata, postice angus- 

 tata, albida, versus apices interdum pallide flavescens, zonis et 

 lineis concentricis griseo-hyalinis picta, mediocriter compressa ; 

 margo dorsi anticus leviter obliquus, subrectilinearis, posticus 

 valde declivis, ventralis late arcuatus, postice vix sinuatus ; 

 valvce lineis incrementi tenuibus concentricis striatce, striisque 

 aliis conspicue obliquis conferfis fere undique sculptce ; denies 

 cardinales valvce dextrce duo divergentes, in vnlva sinistra unicus. 



