TRIBE NYMPHACEA. 61 
Section.—N. TELLINARIA. 
* With one or two lateral teeth. 
TELLINA. 
Transverse or orbicular, generally flattened ; the anterior side 
angular, a flexuous irregular plait on the margin; with one or 
_two primary teeth in the same valve, and usually two lateral teeth, 
Srequently remote ; ligament external. 
* Transversely oblong. 
T. Raprata. Lin. 1117.—D. p. 83.—Lam. 1.—Son. G.— 
Ch. f. 100 § 102.— E. t. 289. f. 2.—Reeve. t. 55. f. 1.—W. t. 4. 
J. 26. Oblong, smooth, polished, with very delicate longitudinal 
striz and red rays, on a white ground; hinge nearer the anterior 
extremity, which is somewhat beaked and inflected. 11..22.— 
Europe § West Indies—(Untmacuxata. Lam. 2.—E. t. 289. f. 
3.)—Variety, without the rays, but the beaks tinged with rose 
colour. 
T. Semizonatis. Lam. 3.— Del. t. 6. f.1. Oblong, narrow, 
with extremely delicate longitudinal striz, very pale violet, and 
somewhat zoned : within reddish-purple, with two very oblique in- 
distinct white rays at the anterior extremity.— Resembles Unima- 
culata. 
T. Macutosa. Zam. 4.—T. Interrupts. D.p.75.—E. t. 
288. f.7.—W.t.3. f.4. Oblong, sub-equilateral, rough with trans- 
verseraised strie, with chesnut purplish-red or tawny letter-like linear 
markings disposed radiatingly on a white ground: anterior end 
beaked and its slope lamellar, posteriorly rounded: two lateral 
teeth. 11..21.—W. Indies.— Broader than the next. 
T. Virgata.. Lin. 1116.—D. p. 74.— Lam. 5.—E. t. 288. f. 
2.— Ch. f. 67 §& 72.—Wood. G. C. t. 35. f. 1.—W. t. 3. f. 3. 
Ovate-oblong, equilateral, somewhat beaked and angulated at the 
anterior extremity, and rough with transverse strie ; variable in 
colour, being yellow with paler transverse bands and rosy rays, white 
with red rays or vice versa. An. var.? (Ch. f. 68.—. t. 288. 
f.4.—T. Marernacis. D. p. 74.) Longer in proportion, and 
the strize less coarse. 13..2%.—India. 
T. Srauretita. Lam. 6.—Ch. f. 66. Oval, angulated and 
shorter anteriorly where the transverse striz become rough and 
elevated ; yellow within and without, the beaks usually adorned 
with a purplish-crimson cross, and incipient rays.—Variety, 
without the rays.— Variety, (Del. t. 6. f. 2.), without the cross 
and but slightly rayed. 14..2.——New Holland. 
T. Crucigera. Lam. 7. Ovate-oblong, somewhat beaked and 
