COyCUOLOGi'. 135 



Famili/ Tellinidse. 



Siphons very long, slender, divorgeut :nid separated fur flieir entire length. 

 Foot com|)rcssed, liugniforra, bent. Shell free. Hinge with two cardinal teeth at 

 most iu each valve. Ligament on tlie shorter side of the shell. 



Siii-fionih/ TELLIXIX.E. 

 Shell compressed, gaping posteriorly. 

 AsAPiiis, Modevr. 



Valves radiately ribbed or striated. Ligament external, largo. 



'■' ,, DEFI.ORAT.i, L. 



PsAMM0i!i.i Malaccaxa, Rccve. 



,, Arakana, Hanley MS. 



•'' ,, violacea, Lara. 



""•' „ TuirAETiTA, Keeve. 



,, caru/escens, Lam. 



(Psammocola) too ATA, llecvc. 



*iIlATnLA DIVHOS, L. 



This species abounds in backwaters along the coast of Burma, and is eagerly 

 sought for as food. A man walks along the stream, scrutinizing the sand, till he 

 perceives the key-hole (so to say) which marks the retreat of the wily dip/ios. 

 A thin strip of bamboo, with a cordate extremity, is now thrust down, and passes 

 right througli the body of the animal, whoso position is of course a vertical one. 

 Tlie valves are at once forcibly closed, and little difficulty is now experienced in 

 hauling forth the coveted prize. W. Blanfnrd describes it as burrowing /w«/- feet and 

 having siphons longer than the shell (J.A.S.15. 1807, Part ii. p. 69). 



*" ,, ATUATA, Born. 

 Tkli.ixella, Gray. 



* ,, PRisTis, Lam. 



* ,, striatula, Lam. 



* ,, EEJIIES, L. 



* ,, GuiNAicA, Chem. 

 *• ,, POLTGONA, Chem. 



* ,, PHiLirrrxAKUM, Hanley. 



* ,, ROSEA, Hanley. 

 Sub-genus M.ERA, IT. and A. Adams. 



,, EnoiiBoii)E.s, Quoy and Gaim. Andamans. 

 *Tellinii)es planissima, Anton. 



* ,, lanceolata, Gmcl. 



* ,, TKUNCATULA, SoW. 



■^ ,, coNsprcuA, Hanley. 



*Macom:a ALA, Hanley. 



„ BlEMAJS'ICA, Phil. 



Siih-family DONACIN.E. 



Siphons short, divergent. Ligament external, short. 



DoNAx, Limiieus. 



Shell strong, cuneiform, equivalve, inequilateral, the hinder portion shorter 

 tlian the anterior. Two cardinal teeth in one valve and a bifid one in the other. 

 Pallial sinus wide and deep. 



