556 



CATALOGUE^ — SHELLS. 



63. BUCCINUM SQUALIDUM. 



B. testa conico-jusiformiijuscd; anfractu basali ventricoso ; spird 

 mediocri ; aperturdjuscd, lutescenti, patuld ; long. l-^-J ; lat.l^^ 

 poll. 



Habitat 9 Mus. Brit., nost., Brod. 



64. BUCCINUM DEFORME. 



B. testd ovatd, subponderosd, suhalbiddy fasciis duabus Jliscis obscuris / 

 spird brevi ; anfractu basali subdepresso, suturam versus crasso / 

 columelld valde callosd ; long, l-f^ ; lat. 1 paulo plus ; poll. 

 Habitat ad fiumen Plata (Gorriti). Mus, Brit., nost. 



The eggs of this shell, contained in a transparent orbicular nidus, 

 the size of a turtle's egg, were found thrown up on the sea-beach 

 of the island. In the month of January they were observed in all 

 stages of growth. A series was preserved in spirits, and presented 

 to the College of Surgeons. 



65. COLUMBELLA MITRIFORMIS. 



C. testd Jiisiformi, luteo-rufescente, fasciis nigro-castaneis, maculis 

 albis iessellatd ; long. -Jq ; lat. -^^ ; poll. 



Haiitat? Mus. Brit., nost., Brod. 



66. MiTRA PUSILLA. 



M. testd ovato-acutd, ventricosd, fiilvd, creberrime costatd ; costis 

 interstitiisque striatis, hasi granulosa ; spird brevi, anfractibus su^ 

 turam super eminentibus ; columelld quinque-plicatd ; long, f ; 

 lat, -^Q paulo plus ; poll. 

 Habitat? Mus. nost. 



The denticules of the outer lip are arranged in pairs, at regular, 

 and somewhat distant, intervals. 



67. VOLUTA. 



A fragment of a turbinated shell, bearing marks more assignable 

 to Voluta than to any other genus, was found on the sea-beach in 

 the neighbourhood of Cape Fairweather, on the east coast of Pata- 

 gonia, in latitude 51|^ south. The remains appear to differ from 

 Voluta Ancilla and V. Brasiliana. 



