GASTROPODA. 7 



DEFIIANCIA PONSONHYI, Soiverby, nov. sp. pi. 1, tig. 5. 

 Testa breviuscula, valide clathrata, albida, spira turrita ; 

 anfractus 6 convex!, superne angulati, costis longitudinali- 

 bus elevatis rotundatis (in anfr. ult. 10), liris spiralibus 

 angustioribus (in anfr. penult. 4) sculpti ; anfractus ultimus 

 leviter inflatus, infra medium contractus, vix productus, 

 fascia fulva obscura pictus ; apertura latiuscula ; labrum 

 leviter incrassatum, superne sinu brevissimo emarginatum. 



Long. G^f, diam. maj. 3 millim. 



Hab. Port Elizabeth. 



This species somewhat resembles D. linearis (Mont.), 

 but the lattice sculpture is much coarser. 



MANGILIA CLATHRATA, M. de Serres, Journal de Conch. 

 1883, p. 327; Tryon's Manual of Conch, vol. vi. pi. 16, 

 figs. 68-70. This Mediterranean species has been found at 

 Port Elizabeth. 



MANGILIA COSTATA, Donovan, Sowb. 111. Index of Brit. 

 Shells, pi. 19, figs. 20, 21. Specimens from Algoa Bay 

 scarcely differ from those found on the English coasts. 



MANGILIA COSTULATA, Blainville, var. striolata (Scacchi), 

 Tryon, Man. of Conch, vol. v. pi. 21, fig. 19. This well- 

 known European shell has been found at Port Elizabeth. 



MANGILIA SEPTANGULARIS, Montagu, Sowb. 111. Index of 

 Brit. Shells, pi. 19, fig. 24. 'Mr. Crawford has found a 

 specimen of this well-known British species in good condi- 

 tion at Port Elizabeth. 



MITROMORPHA VOLVA, Sowerby, nov. sp. pi. 1, fig. 16. 

 Testa elongato-fusiformis, alba ; spira elatiuscula, ad apicem 

 obtusa ; anfractus 5^, levissime convexi, spiraliter dense 

 lirati ; anfractus ultimus spiram paulo superans, basin versus 

 attenuatus ; apertura oblonga ; columellavix contorta ; labrum 

 rectiusculum, vix sinuatum. Long. 6, diam. maj. 2^ millim. 



Hab. Port Elizabeth. 



Allied to the Japanese M. lirata (A. Adams), but shorter 

 in proportion to its width, and more fusiform. 



TRITON CUTACEUS, Linn. Eeeve, Conch. Icon. (Triton), 

 sp. 39 Port Elizabeth. The typical form of this common 

 Mediterranean species is rare on the South African coast. 



TRITON CUTACEUS, var. A fricana = Triton africanus (A. 

 Adams). See note, Journ. of Conch, vol. vi. p. 150. Port 

 Elizabeth. 



