456 
CONCHIFERA. 
tie gaping laterally; beaks small, and sub-depressed; margin 
plain, irregular, but not inflected; two divergent primary teeth 
in each valve, and two lateral teeth, which are somewhat obso¬ 
lete, in one valve. 
Tellinides rosea. —The Roseate Tellinides. 
Plate XC. fig. 10. 
Ovate, oblique, polished, thin, and of a beautiful rosy hue; 
slightly wrinkled transversely. Half an inch broad. Inhabits 
the Bay of Naples. 
Genus 38. — TELLINA.— Linnaeus. 
Generic Character. — Transverse or orbicular; both valves 
generally flattened; the anterior side angular, and indexed on 
the margin with a flexuous irregular band; with one or two pri¬ 
mary teeth in the same valve, and two lateral teeth, frequently 
remote; ligament exterior. 
There are two sections of this genus:—* Transversely ob¬ 
long ; and, ** Orbicular. 
Tellina depressa. — The Depressed Tellina. 
Plate XC. fig. 11. 
Oval, flat, pointed at the smaller end, and slightly reflected ; 
pale yellowish, faintly striated concentrically; covered with a 
pale brown transparent epidermis. One inch and three quarters 
broad. Inhabits the Mediterranean sea. 
*** Solenaires. 
Genus 39.—P S A M M O T JE A. — La march. 
Generic Character. —Transverse, ovate, or oblong-ovate; 
slightly gaping at the sides; each valve with a single primary 
tooth, sometimes in one valve only; ligament external. 
Psammotcea violacea. —The Variegated Psammot.-ea. 
Plate XC. fig. 13. 
Transversely ovate-oblong, sub-ventrieose ; radiated with pur¬ 
ple; transversely striated. Two inches broad. Inhabits the 
Australian seas. 
