116 



PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



maculis transversis, paucis, apud basim multipunctatis, apertura ovato- 

 rotuncla, labro simplice. Long. 2 mm. sp. maj., lat. 1 mm. 



A very minute shell, which I cannot exactly match with any 

 pourtrayed and described in Pilsbry's exhaustive collaboration of the 

 genus. ^ It comes near to P. umhilicata, D'Orb., from Cuba and 

 Florida, but would seem even more tumid than that species, while 

 it is entirely smooth, with no impressed lines ; the shell is perforate, 

 solid, white, shining, very smooth, with five whorls ; whorls extremely 

 tumid and ventricose, impressed at the sutures, painted with a 

 sprinkling of minute red dots, these most profuse at the base of the 

 shell ; a little below the lower half of the last whorl there is a 

 transverse row of a few somewhat square, dark-red spots ; the mouth 

 is oval, outer lip simple. 



Ten specimens, but mostly not full-grown. 



26. Tellina (Tellinella) XHYiiAHES, n.sp. PI. YIII, Fig. 9. 



T. testa delicatula, tenui, alba, subtrapeziformi, compressa, con- 

 centrice multi-costulata, margine dorsali declivi, serrulate, latere 

 antico expanso rotundato, postico truncatulo, margine ventrali latus 

 ad posticum contracto, deflexo. Long. 13, lat. 20 mm. 



A most delicate species, resembling in texture, but not in form, 

 such species as Tellina perplexa or T. lyra, both of Hanley. The 

 shell is trapezium-shaped, compressed, delicate white, thin, regularly 

 concentrically closely ribbed, the dorsal margin sloping slightly, thus 

 recalling the genus Tdlidora, (e.g. T. crystallina), serrulate both 

 posteriorly and anteriorly, the anterior side being roundly expansive, 

 somewhat truncate posteriorly, the ventral margin contracted towards 

 the posterior side. 



The sj)ecific name is from the Greek Ov/ndpij'i, ' delicate.' 



EXPLANATION OF PLATE YIII. 



1 Man. Couch., ser. i, vol. x, p. 162, etc. 



