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TRIBE BRACHIOPODA. 325 
T. Rupetta. Sow. Th. 1, p, 350, t. 69, f. 40, 1, 2.—TEREBRA- 
TELLA R. Gray, Brach. p.90. Nearly oval, rather acuminated 
dorsally, a little gibbous, slightly sinuated ventrally; valves unequal, 
smooth, red; margin entire, a little simuated ventrally. Upper valve 
reflected, without any mesial ridge, but with a very obsolete mesial 
furrow ; perforation small; hinge-area narrow, rounded at the sides, 
with rather large united deltidia. Lower valve ovate, with a broad 
mesial groove forming a ventral sinus: internal appendage as in 
FLAVESCENS. 3...2. Japan. 
T. Sanauinea.—Anomia 8. Ch. f. 706.—D. p. 293.—A. San- 
GUINOLENTA, Gm.—W. t. 11, f. 21—T. Ernyturoiruca, Quoy, Ast. 
t. 85, f. 8, 9.—Desh. ed. Lam. 7, p. 850.—T. 8. Sow. Th. 1, p. 3857, 
t. 71, f. 71, 2, 3.—TEREBRATELLA 8. Gray, Brach. p.90.  Sub- 
orbicular, slightly notched at the ventral edge, rather gibbous, thin, 
of a bright light red, with rays and radiating spots of white; margin 
entire, not waved, slightly sinuated ventrally. Upper valve rather 
acuminated dorsally and truncated; perforation middle-sized, com- 
plete; hinge-area rather broad, with sharpish edges; deltidia rather 
large, united. Lower valve somewhat depressed, transversely ob- 
ovate; internal appendage at first forming two rays, then a central 
ring and two lateral loops, at length a reflected upper loop united to 
the central rmg. ~,. Philippines. 
T. Frontatis. Middend. Mal. Ros. 3, p.2; Sibir, p. 241, t. 18, 
f. 9 to 14.—TeREBRATELLA FE’. Gray, Brach. p. 80. Suborbicular, 
rather solid, almost smooth, dirty yellowish, devoid of mesial ridge or 
groove; valves equally convex; margin hardly waved, quite entire. 
Upper valve produced, scarcely recurved and broadly truncated dor- 
sally ; perforation very large, incomplete. Smaller valve roundish or 
transversely oval: loop elongated, doubly attached. 3. Siberia. 
T. SprrzBERGENSIS.— TEREBRATELLA 8. Davids. Z. P. 1852; 
Ann. N. H. 1855, t. 10, f. 3— Gray, Brach. p. 91. Small, oval, 
elongated, smooth, pale horn-coloured; valves almost equally convex, 
margins even; dorsal valve slightly depressed in front; beak pro- 
duced, recurved, obscurely keeled ; perforation moderate, incomplete ; 
deltidium of two distinct elongated plates ; loop elongated, reflected, 
attached near the extremity of the prominent central septum. 4...}. 
Spitzbergen. 
“ek Surface minutely shagreened ; with radiating sculpture. 
T. Dorsata.—Anomia Srriata, &c. Ch. 8. f. 710.—A. D. Gm.— 
D. p. 295.—W. t. 11, f.26.—T. D. Lam. 8.—E. t. 242, f. 1.— Sow. G. 
—Reeeve, t. 126, f. 3.—Sow. Th. 1, p. 346, t. 68, f. 15, 6, 7.—TERE- 
BRATELLA D. Gray, Brach. p. 87. Suborbicular-trapezoidal, rather 
gibbous, whitish; valves unequal, with yadiating ridges; margin 
