288 
Mactra stultorum. 
Tapes florida ? 
Donax trunculus. 
Scrobicularia tenuis—shore of the 
lake. 
REPORT-—1850. 
Cardium edule, var.-~shore of the 
lake, small, wide, thin. 
?—shore of the bay, 
strong, triangular, fewer ribs (22), 
and other common littoral species, 
In Tunis Bay 25 fathoms, mud. 
Corbula rosea ?—small, thin, pellucid, 
numerous. 
Cytherea venetiana—small. 
Arca noe—valves. 
Arca antiquata ?—valves large. 
Bulla striata. 
Natica olla. 
millepunctata—banded var. 
Nassa neritea. 
Erato levis. 
DREDGING 
Date, 29th of May, 1849. 
Cerithium fuscatum (living). 
Trochus articulatus (living). 
tessellatus (living). 
Helix pisanat. 
Glandina follicula—larget. 
Bulimus decollatus—larget. 
Clausilia papyraceat. 
Helix melanostomarf. 
naticoidest. 
alive. 
\ dead. 
Paper No. 3. 
Locality, north-east of the Island of Zembretta, mouth of Gulf of Tunis. 
Depth, 35 fathoms. 
Distance, 14 to 2 miles from the island. 
Ground, sand and gravel with occasional rocks. 
No. of living| No. of dead 
Observations. 
Species obtained. specimens. | specimens. 
Dentalium tarentinum ...... 3 
-- --- νᾶγ. Fc vos coasaves| ΠΟ tway ac 2 striated with waved appearance. 
CBCUM TTACHER) .ccccscccerese| Ὁ νον 3 
Ditrupa subulata, var.......... several | numerous. 
—— subulata .........000.ce0e 1 few 5Π18]]. (Gibraltar. 
lee tcectscetecccecees] — cneree 1 pellucid, notched aperture, species at 
Saxicava arctica .....cc0cscec0.|  cecaee 2 
Sphenia Binghami............ 1 
Corbula nucleus ............... several. 
———  TOSCA 2... seeveenseesenens 2 
Nera cuspidata ............6 600}  seveee 1 
—— Costulata......secrereeres| veneer 1 
Pandora obtusa .......sesse000| seers 1 
Thracia phaseolina? ......... νυ οἰκο young. 
Solen pellucidus .......+-..+... ΡΠ 4 lence young. 
Syndosyma ........ Dee τον δος young, pellucid. 
PENUIS ἐὐο νον -νούονενοῖτος 2 
Psammobia costulata ......... 1 young | 3 valves. " 
Tellina donacina.............+ ΣΟ το valves 
—— CT ASSA ...-.0.....seeerences 2 young |... very minute. 
—— balaustina .............0.{  ceeeee valves. 
PUNICET S| Wiiccel dees e. ce 1 young: 
pulchella τς ἐς ὩΣ οὗτος Boas valves. 
Ξε IBLOIUR ics vsanceisssanses| κι yauane valves. 
mA ιν ἐτ ιν τον το νννρ ον! τοῦτον ϑ small. 
Lucina spinifera ..............+ ite s\paaipera small. 
—— bipartita..........00.0.6 1 2 & valves. 
—— divaricata .......ἁἀὐννεννζ  ceveee 1 valve. 
—— digitalis ................4 4. valves. 
—— —, gy. astarte ?...... 2 | 6 valves. 
Cytherea chione .....0s00.0.02.|. scasee 1 young. 
Artemis exoleta ?...........60++ several | ...... minute. 
Circe minuta ...... etaitis ictee ΠΣ ΣΝ [αϊδαίει 
+ The most abundant land shells among the ruins of Carthage. 
