38 MAZATLAN BIVALVES 
colour in irregular radiating lines, crossing the oblique strie. 
It measures long. °37, lat. °64, alt. °12. 
Hab—Mazatlan ; Col. Cuming.—?? Mazatlan; in Spondylus 
washings ; L’pool Col. 
61. TELLINA BREVIROSTRIS, Desh. 
Proe. Zool. Soc. 1854, p. 362. 
This little valve seems to suit the description above quoted: it 
differs from T. gracillima in being very inequilateral, the lateral 
and cardinal teeth very strong, and the lamelle very regular, 
not much raised and rather close. Long. ‘03, lat. 05, alt. ‘O15. 
Hab.—Central America and California [?Gulf], Col. Cum- 
ing.—Mazatlan ; extremely rare, jun; L’pool Col. 
Tablet 124 contains 1 valve, and a fragment of a larger 
specimen. Nothing else was found. 
62. TELLINA P DENTICULATA, Desh. 
Proc. Zool. Soc. 1854, p. 365. 
Shell like a little T. crassa, with exceedingly large and 
projecting lateral teeth ; muscular impressions strongly mark- 
ed. Pallial line indistinct. The outside of both valves is worn, 
and prevents the identification of the species. Lony. ‘065, 
dat:-O7; alt. -O2. : 
iTab.—Unknown, Col. Cuming.—? Mazatlan ; from Spondylus 
washings ; L’pool Col. 
Tablet 125 contains the only specimen. 
63. TELLINA ————, sp. indet. 
Tablet 126 contains an imperfect valve remarkable for its 
3 strong rather divergent cardinal teeth; the lateral ones are 
not developed, but there appear spaces for their reception 
from the opposite valve. 
Hab.—Mazatlan ; off Spondylus ; L’pool Col. 
4 
64. TELLIna —————., sp. indet. 
Tablet 127 contains a broken valve remarkable for its sub- 
diaphanous concentric lines on a smooth surface. A fragment 
