GASTROPODA. 7 
Derrancia Ponsonpyl, Sowerby, nov. sp. pl. 1, fig. 5. 
Testa breviuscula, valide clathrata, albida, spira turrita; 
anfractus 6 convexi, 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. 64, diam. maj. 3 millim. 
Hab. Port Elizabeth. 
This species somewhat resembles D. linearis (Mont.), 
but the lattice sculpture is much coarser. 
MAaNGILIaA CLATHRATA, M. de Serres, Journal de Conch. 
1883, p. 327; Tryon’s Manual of Conch. vol. vi. pl. 16, 
figs. 68-70.—This Mediterranean species has been found at 
Port Elizabeth. 
Manaiuia costata, Donovan, Sowb. Ill. Index of Brit. 
Shells, pl. 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. pl. 21, fig. 19.—This well- 
known European shell has been found at Port Elizabeth. 
MANGILIA SEPTANGULARIS, Montagu, Sowb. Ill. Index of 
Brit. Shells, pl. 19, fig. 24.—Mr. Crawford has found a 
specimen of this well-known British species in good condi- 
tion at Port Elizabeth. 
MirromorPHA VoLva, Sowerby, nov. sp. pl. 1, fig. 16. 
Testa elongato-fusiformis, alba; spira elatiuscula, ad apicem 
obtusa; anfractus 54, 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. Reeve, 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. Africona=Triton africanus (A. 
Adams). See note, Journ. of Conch. vol. vi. p. 150.—Port 
Elizabeth. 
