TELLINA.—Puate XX. 
eatus roseo-purpurascentt ; latere postico prope margi- 
nem angulato, termino emarginato, acuminato, via 
Jflexuoso, margine dorsali rectiusculo, declivi, liga- 
mento elongato, margine ventrali ad angulum sursim 
acclivi; latere antico oblongo, margine dorsali albo mar- 
ginato, dentibus lateralibus nullis, dentibus cardinali- 
bus parvis. 
THE PURPLIsH TrLLINA. Shell ovate-oblong, com- 
pressed, subequilateral, minutely cancellated with 
concentric granulated ridges, and radiating impressed 
striz, purplish-rose within and without; posterior 
side angulated near the margin, emarginated, acumi- 
nated at the end, scarcely flexuous, dorsal margin 
rather straight, sloping, ligament long, ventral mar- 
gin sloping upwards to the angle; anterior side ob- 
long, with the dorsal margin white-bordered, la- 
teral teeth none, cardinal teeth small. 
Broperipe and SoweErsy, Zool. Journ. vol. iv. p. 363 ; 
Thes. Conch. Tellina, f. 194. 
Hab. Realejos, Central America; Cuming. 
This shell is beautifully sculptured with ridges of white 
scales, crossed by radiating impressed lines. 

Species 104. (Mus. Taylor.) 
TELLINA LACERIDENS. 
suboblique subtrigond, subequilaterali, irvegulariter in 
partibus striata, intis luted ; latere postico levigat, 
subtrigond, angulatd, oblique truncata, margine dorsali 
Tel. testa alba, subcomplanatd, 
declivi, margine ventrali recliusculo, ared centrali sub- 
depressd ; latere antico oblongo, margine dorsali sub- 
declivi, margine ventrali convexo, dentibus cardinalibus 
in utrdque valvd uno, lacerato, dentibus lateralibus an- 
licis proximis. 
THE TORN-TOoTHED TELLINA. Shell white, somewhat 
flattened, subobliquely subtrigonal, subequilateral, ir- 

regularly striated in parts, yellow within; posterior 
side smooth, subtrigonal, angular, obliquely trun- 
cate, dorsal margin sloping, ventral margin rather 
straight, central area rather depressed ; anterior side 
oblong, dorsal margin rather sloping, ventral margin 
convex, cardinal teeth one in each valve, ragged, an- 
terior lateral teeth approximate. 
Hawnuey, Pro. Zool. Soc. 1844; Thes. Conch. pl. 61, 
168, 176. 
Hab. Tumbez, Peru. 
The surface is in many parts smooth, particularly on 
the posterior side. 
Species 105. (Mus. Taylor.) 
TeLuina ovalts. Tel. testa ovatd, depressa, utrinque hi- 
anti, subequilaterali, roseo radiata, lineis concentricis 
postice distantibus anticée crebris sulcatd ; latere pos- 
tico truncato, obtuse angulato, margine dorsali subde- 
clivi, ligamento conspicuo, margine ventrali convexo ; 
latere antico termino rotundo, margine dorsali declivi, 
dentibus lateralibus nullis, dentibus cardinalibus parvis. 
THE OvaL TELLINA. Shell oval, depressed, gaping at both 
ends, subequilateral, rayed with rose, grooved with 
concentric lines, distant posteriorly, close anteriorly ; 
posterior side truncated, obtusely angular, dorsal 
margin rather sloping, ligament conspicuous ; ventral 
margin convex; anterior side rounded at the end, 
dorsal margin sloping, lateral teeth none, cardinal 
teeth small. 
Sowrrsy, Tank. Cat. App. p. 3. 
Tellina tridentata, Anton in Wiegmann’s Archives. 
Hab. Moluccas, Island of Zebu; Cuming. 
This shell is in form almost approaching the genus 
P s g 
Psammobia. 

