PELECYPODA. 27 
Antero-post 9, umbono—marg. 5 millim. 
Hab., Durban (Burnup). 
This shell is narrower than S. Compta, and has a rather 
narrow but decided ventral hiatus. 
SoLENoMYA ToGATA, Poli (= Mediterranea, Lamk), Reeve, 
Conch. Icon. (Solemya), fig. 2—Durban. 
SEPTIFER NicoBaricus, Chemnitz, Reeve, Conch. Icon. 
(Mytilus), pl. 9, fig. 42—Durban. 
PINNA MADIDA, Reeve, Conch. Icon., pl. 17, fig. 31.— 
Durban. 
Pinna saccaTa, Linn., Reeve, Conch. Icon., pl. 4, fig. 6.— 
Natal. 
PINNA SERRA, Reeve, Conch. Icon., pl. 23, f. 43.—-Durban. 
PINNA VEXILLUM, Born, Reeve, Conch. Icon., pl. 19, 
fig. 36.—Durban. 
PINNA SQuamosissIMaA, Philippi, Reeve, Conch. Icon., fig. 2 
(as P. senunuda, Lam.) 
Avicuta (MELEAGRINA) FLABELLUM, Reeve, Conch. Icon. 
(Avicula), figs. 7, 8.—Durban. With this species I unite 
A. imbricata., lacunata, and muricata, Reeve. 
AvICULA ZEBRA, Reeve, Conch. Icon., figs. 3, 6.— Port 
Elizabeth. 
MALLEvs TIGRINUS, Reeve, Conch. Icon. (Malleus), pl. 3, 
fig. 7—Durban. 
MALLEUS LEGUMEN, Reeve, Conch. Icon., pl. 1, fig. 2.— 
Durban. 
PERNA ANOMIOIDES, Freeve, Conch. Icon. (Perna), pl. 3, 
fig. 11. —Durban. 
Arca Divaricata, Reeve, Conch. Icon. (Arca), pl. 16, 
fig. 108.—Durban. 
Arca (BarBaTIA) C@LATA, Heeve, Conch. Icon. (Azsca), 
fig. 110.—Durban. 
PECTUNCULUS QUEKETTI, n. sp. (plate 7, figs. 8, 9).— 
Testa subquadrato rotundata, crassa, convexa, fusca, lineis 
numerosis albidis radiata, undique subtilissime radiatim 
striata; umbones centrales prominentes, acutiusculi, fere 
approximati; area elongata, angusta, sub-profunda; ligam- 
