4D4, MR. F. CHAPMAN ON SOME 
Family Cy THERID &. 
CytHERE, Muller. 
CYTHERE acupuncoTatTa, G. S. Brady. 
Cythere acupunctata, G. 8. Brady, 1880, Rep. Chall. Exped., Zool. 
pt. ili. p. 68, pl. xiv. figs. 1 a—h. 
It is interesting to record this species from Funafuti, especially 
since it is so rare elsewhere, having been found previously at one 
locality only, in the Inland Sea, Japan, at 15 fathoms. 
At Funafuti C. acupunctata occurs in the beach-sand, Fualopa ; 
and in the lagoon dredgings, Rocky Islet, in some abundance 
(Sollas coll.). Also in dredgings N. of Pava Islet, 36 fathoms, 
and off Tutanga, 50-60 fathoms (David coll.). 
CyTHERE opTusaLata, G. S. Brady. 
Cythere obtusalata, G. S. Brady, 1880, Rep. Chall. Exped., Zool. pt. i. 
p- 91, pl. xii. figs. la-e. 
Two characteristic valves of this rare species were found at 
Funafuti. 1t has been previously recorded from Bass Straits 
and off the Admiralty Islands in shallow water. At Funafuti 
it was found in the beach-sand of Avalau Islet (Sollas coll.), : 
and off Tutanga, at 200 fathoms (Halligan and Finckh coll.), 
CYTHERE PHYLLOIDES, sp. nov. (Pl. 37. figs. 3 a—c.) 
Shell compressed, elongate ; side view oblong, broader at the 
anterior end, narrowing somewhat to the posterior extremity ; 
height a little more than one-half the length ; anterior extremity 
well-rounded, posterior rounded and obliquely curved on the 
postero-dorsal margin; the postero-ventral margin with a few 
sharp denticulations ; both the ventral and dorsal margins nearly 
straight ; anterior margin with a broad flange ; posterior margin 
steep and flanged. Seen from above, the carapace is subovate, 
and ineurved in the middle, broad at the posterior extremity 
and slightly narrowing to the anterior. End view subcircular, 
broad at the ventral, compressed at the dorsal, margin. Surface 
of valves ornamented with two thin flexuous ribs which run 
nearly their length, and some disconnected oblique and trans- 
verse riblets; the intercostal area filled with fine reticulations. 
Length ‘9 mm. 
