GASTEROPODA. Na 
Animal having the locomotive disk dark ochreous, greenish along 
the middle; cervical veil and head paler; body above mottled with 
ochreous aud mahogany-brown; there is a transverse band across the 
base of the tentacles, and a sub-marginal one on the lip; the head is 
short and broad ; lateral cirrhi one on each side. Operculum greenish. 
Figure 200, the animal, as in motion. 
TURBO PETHOLATUS (Lin.), Syst. Nat., 12 ed. 1233; Lamarck, An. 
sans Vert., 1x. 192. 
AnIMAL with the locomotive disk short, escutcheon-shaped, dark 
ochreous; above burnt-sienna colour, somewhat reticulate; cervical 
veil the same above and below; tentacles remarkably long; eye pedi- 
cles auriculate ; a single cirrhus on each side. 
Figure 201, shell, with the animal, as in motion; 201 a, the locomo- 
tive disk. 
TrRocuus NIGER (GRay), in Wood’s Index, Suppl. (1828); Zoology 
of Beechey’s Voy., pl. 36, f. 1. 
Anima much like that of T. ater. Body black, dotted with brown; 
tentacles long and slender, slate-coloured, annulated with black; mantle 
slightly notched at the margin, to correspond with the grooves of the 
shell. Foot broad, oblong, cream-coloured, with a faint anterior mar- 
ginal fissure; lateral fringe very narrow, bearing four filaments on 
each side. Operculum calcareous, convex and granular externally, 
plane and covered by a horny epidermis on its adhering surface. 
Found both at Valparaiso and Callao. [1. p. c.] 
Figure 212, shell, with the animal, as in motion; 212 a, locomotive 
disk. 
TurRBo CoNFRAGOSUS (Gould). 
Testa solida, albida, pyramidata, rudis, rugosa ; rugis parvis, obtusis, 
