1861.] DR. H. DOHRN ON NEW SPECIES OF SHELLS. 205 



the distinct bright-yellow superciliary streak on each side of the 

 head, extending from the nostril to the occiput. 



Geoclemmys melanosterna. 



Shell black, one-keeled ; the first vertebral plate longer than broad, 

 truncated behind ; second and third six-sided, about as broad as 

 long, the fourth broader than long ; the keel low, rather interrupted ; 

 the areola of the dorsal and marginal shield posterior ; the margiii 

 rather acute, slightly bent up in front and on the sides ; the nuchal 

 shield more distinct ; the sternum flat, black, with rather paler edges 

 to the shields ; the sterno-costal slope rather convex, pale yellowish ; 

 the under surface of the marginal plates pale ; the axillary plate 

 moderate, the inguinal plate small, both pale-coloured. The head 

 moderate, rather acute in front, black, with a distinct bright-yellow 

 streak diverging over the eyes and extending from the nostril to the 

 back of the head. The legs and tail brown with black spots, forming 

 more or less distinct streaks; toes 5-4, short, strong, subequal, covered 

 with distinct baud-like scales ; the claws strong, conical, black. 



Had. TheGulfofDarien: Cherunha. 



6. Descriptions of New Shells from the Collection of 

 H. Cuming, Esq. By Dr. H. Dohrn. 



(Plate XXVI.) 



1. Epidromus cumingi. (PI. XXVI. fig. 5.) 



T. ovato-turrita, costis spiralihus et longitudinalibus fenestrata, alba, 

 passim flavo-maculata ; varicibus arcuatis, longitudinaliter striatis. 

 transverse costatis ; sutura valde impressa ; aiifr. 8-9, valde con- 

 vexi, lente accrescentes, ultimus antice ascendens ; apertura ovata; 

 margine columellari callo lato granulato tecto, labro dentalo. 



Long. 31, lat. 12 ; ap. long. 12 mill. 



Hab. In Insulis Philippinis. 



Differt ab E. clathrato. Sow., costis eorumque nodis vaUdioribus, 

 varicibus arcuatis, anfractibus convexioribus. 



2. Mitra aurora. (PI. XXVI. fig. 3.) 



T. ovato-fusiformis, 7iitida, spiraliter punctato-striata, aurantiaca, 

 ad suiuram fascia alba irregulari cincta, maculis et punctis albis 

 adspersa ; sutura crenuta, marginata ; spira acuminata ; anfr. 8, 

 plani, ultimus basi attenuatus et sulcatus ; apertura fere vei-ticalis, 

 intus carulescenti-albida ; labrum crenatum, columella callo 5- 

 plicato tecta. 



Long. 35, lat. 13 ; ap. long. 18, lat. 6^ mill. 



Hab. In insulis Sandwich. 



Accedit ad varietates quasdam M. coronatce. Lam. 



(v,H . 3. Mitra adamsi. 



T. solida, ovata, longitudinaliter costellata, costis albidis, interstitiis 



