in ak NAS 
PuatEe V. 
Species 16. (Mus. Cuming.) 
TeLuixa stncara. Tel. testd oblongo-subquadrata, lata, 
complanutd, teniusculd, subequilaterali, latere antico 
breviusculo, subquadratim rotundato, margine dorsali 
via declivi, latere postico truncato, obtusissime angu- 
lato, ante angulum sinuatim depresso, margine ven- 
trali medio recto, posticé validé sinuato. 
Tue stNuarep TeLtina. Shell oblong-subquadrate, 
broad, flat, rather thin, nearly equilateral, anterior 
side rather the shorter, subsquarely rounded, dorsal 
margin scarcely sloping, posterior side truncated, 
very obtusely angulated, in front of the angle sinu- 
ously depressed, ventral margin straight in the middle, 
with a strong posterior sinus. 
SPENGLER. 
Tellinides Timorensis, var., Sowerby. 
Tellina nivea, Wood, Test. jun. 
Had. Tranquebar ; Sumatra. 
Differing in proportions from 7. Timorensis, and in the 
decided, deep sinus of the ventral margin. 

Species 17. (Fig. a, 6, Mus. Sowerby.) 
TeLttva ELEGANS. Tel. testd elongatd, eleganter tortuosd, 
politissind, solidd, subinequivalvi, nived, rosea ra- 
diatd, latere antico semiovato, latere postico attenuato, 
acuninaty, peroblique truncato, margine dorsali in- 
curvo, declivi, margine ventrali validé convevo, postice 
sursum acclivi, leviter sinuato, valvuld dextrd profun- 
diore, dentibus lateralibus, valuule dextre uno postico 
remoto, uno antico proximo. 
THE ELEGANT TeLLINA. Shell elongated, elegantly tor- 
tuous, very polished, solid, rather inequivalve, white, 
rayed with pink, anterior side half-oval, posterior 
side narrowed, acuminated, very obliquely truncated, 
with the dorsal margin incurved, sloping, ventral mar- 
gin very convex, posteriorly sloping upwards,-slightly 
sinuated, right valve deeper, lateral teeth of the right 
valve one posterior remote, one anterior approxi- 
mate. 
Gray, Wood’s Index Testaceologicus, sup. t. i. f. 5. 
Hab, Gulf of Mexico. 
Besides the peculiar twist resembling that of Arca tor- 

tuosa, this shell differs from 7. radiata in greater depth 
and rotundity of ventral margin. 
Species 18. (Mus. Sowerby.) 
Tetiina MapacascartEnsis. Tel. oblongd, ovatd, crass/, 
subcomplanatd, minutissime striatd, rosed, latere antico 
semiovali, latere postico longiusculo, subattennato, ob- 
lique bicostato,ad lerminum subacuminato, margine dor- 
sali valde declivi, margine ventrali rectiusculo, postice 
sursum acclivi, flexurd ventrali mediocri, intus margine 
cardinali crasso, dentibus lateralibus nullis. 
MapacGascar TeLiina. Shell oblong, ovate, thick, 
rather flat, very minutely striated, rose-coloured, an- 
terior side semioval, posterior side rather the longer, 
rather narrowed, obliquely two-ribbed, slightly acu- 
Tur 
minated at the end, with the dorsal margin very 
sloping, ventral margin nearly straight, but sloping 
upwards posteriorly, ventral flexure medium, within 
the hinge-margin thick, no lateral teeth. 
Gmutin, Linn. Syst. Nat. 3237. 
Tellina rosea, Lamarck. 
Hab. Madagascar. 
Very thick within, and the hinge being without lateral 
teeth the species is typical of the abandoned genus Te/- 
linides. 
Species 19. (Mus. Sowerby.) 
TELLINA STRIGOSA. 
inequivalvi, inequilatlerali, nitidd, fasctis concentricis 
Tel. testé ovato-oblongd, subsolidd, 
semipellucidd, compressa, albidd, roseo et fulvo concen- 
tricé strigatd, latere antico semiovali, ad terminum le- 
viter sinuato, latere postico longiore, subattenuato, 
acuminato, margine dorsali arcuatin declivi, margine 
ventrali antice medio et post medium recto, postice 
sursum acelivi, tum emarginato, valould deatra sub- 
inflatd, valvuld sinistrad subcomplanulatd, flexurd ven- 
trali validd, dentibus lateralibus nullis. 
Tue sTrRIpep TeLLiNa. Shell ovate-oblong, rather 
solid, inequivalve, inequilateral, shining, semipel- 
lucid in concentric bands, compressed, whitish, con- 
centrically striped, anterior side half-oval, slightly 
July, 1866. 
