PHYLLOPODES CONCHOSTRACÉS 325 
? Cyzicus melitensis (Baird). 
Fig. 76, a-c. 
Estheria melitensis Baird W., 5, p. 88, Tab. 11, fig. 2, a-c; Grube E., 52, 
p. 234; Simon E., 120, p. 451. 
«Carapace valves of an elongated oval form, considerably nar- 
rower al the posterior than the anterior extremity; of a light 
horny colour and semitransparent. Anterior extremity roun- 
ded; the beaks situate near that extremity and prominent, 
cansing that part of the shell to be much mare convex than 
any other portion. Ribs somewhat prominent, the surface bet- 
ween them sligthly 
concave and com- 
pletely covered with 
numerous very small 
dots or raised punc- 
lations of rather a 
regular figure. The 
D a haie ma 
rib is beaded like  valvulae concharum. 
the Jast, but the 
dots are smaller. The shellis considerably more elongated than 
in proceding species (Estheria cycladoides Joly), and the beaks 
are more prominent and rather nearer the anterior extremity. 
The colour is much lighter; the ribs rather less prominent, 
and the punctations on the intermediate spaces much smaller 
and à great deal more numerous. 
Hab. Pool of rain-water at Malta, Rew. Mr. Hennah. Brit. 
Mus. » 
Parmi les espèces décrites en détail dans ce travail, ce sont 
les Cyzicus dubiosus Dad. et intermedius Dad. auxquels le 
Cyzicus melitensis (Baird) ressemble le plus par la forme de 
ses valves vues de profil, mais il rappelle aussi les Gyzicus Lofti 
(Baird) et brasiliensis Dad. et, un peu, le Gyzicus politus 
(Baird). Cependant le Cyzicus melitensis (Baird) diffère des 
trois premiers (Cyz. dubiosus, Gyz. intermedius, Cyz. Lofti) 
par la forme de ses valves vues d'en haut, et du derniert 
(Gyz. politus) par la structure de leur surface. Mais ïl nes 
€ 
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