338 Capt. P. P. King’s Description of 
sulcatd; margine valde flecuoso; long. 13; lat. 14 paulo minus; poll. 
Habitat in freto Magellanico (Port Famine.) Mus. Brit., nost., Brod. 
This shell, which was dredged up from deep water in the Bay of Port 
Famine, attached to stones, is nota common shell in the Strait. 
19. TEREBRATULA SOWERBII. - 
T. testé subrotundd, planiusculd, subfuscd, longitudinaliter radiatim 
transversim substriatd, medio superné depressa, infra convexd, sub- 
glabra; margine utrinque crenulato, medio glabro; long. 1,7; ; lat. 
1,7, paulo plus; alt.11; poll. 
Habitat in freto Magellanico. Mus. nost., Geo. Sowerby. 
20. CHITON SETIGER. 
C. testa ovali, anticé subattenuatd ; valvis subdentatis, tenuiter concen- 
tricé striatis, anticd 10-radiatd, posticd levi, parvuld ; areis late~ 
ralibus striis duabus elevatis marginalibus ; ligamento marginali le- 
vigato, setigero; long. 22; lat. 13 ; poll. 
Habitat ad oras insule Tierra del Fuego et in freto Magellanico. Mus. 
Brit., nost., Brod. 
Shell ovate, rather attenuated towards the anterior end, generally of 
a light blue-green colour, variegated with markings of dark slate. Valves 
slightly beaked with minute concentric striz, the lateral compartments 
with two marginal ridges, which in some specimens are granulose, in 
others smooth. The anterior valve has eight, besides two marginal, 
ridges of the same character; the posterior valve is very small and 
smooth. Border coriaceous, and set with bristles produced from three 
rows of tufts or pores. In some of the specimens in my possession the 
bristles are rubbed off. 
The shell is found in all parts of the shores of Tierra del Fuego, par- 
ticularly on its seaward coast, and the western parts of the Strait of 
Magalhaens. 
21. Curron Bowen. 
C. testd oblongo-ovatd, castaneo-rufd ; dorso elevato ; valvis subdenta- 
tis, sublevibus concentricé tenuiter striatis ; areis lateralibus radia- 
tim sulcatis ; ligamento marginali granuloso, nigro ; long. 32; lat. 
14; poll. 
Habitat ad oras insule Tierra del Fuego et in freto Magellanico. Mus. 
Brit., nost., Brod. 
