226 MOLLUSCA. 
papille are branched. In the pale one, the tentacles are longer, more 
linear, all furnished with papille, which are everywhere aculeate. 
But when we consider the identity of locality, the difficulty of deli- 
neating these animals while living, and their power of contracting and 
modifying parts, I think we may safely and properly regard them 
as the same. Aplysia striata, Quoy, is lineated like this, but has 
uaked, truncated tentacles, and very few cirrhi. 
Figure 270, lateral view of the animal; 270a, a dorsal view, with 
the branchie displayed. 
STYLOCHEILUS QUERCINUS (Gould). 
Corpus elongatum, attenuatum, e fusco ferrugineum, longitrorsum rufo- 
lineatum, papillis elongatis ramosis instructum : tentacule prelonge 
lineares, truncate, papillis acutis armate. 
Body limaciform, elongated, delicately attenuated ; the ground co- 
lour slaty, tinted with wood-colour, and longitudinally grained with 
numerous unequal, rusty lines or folds. Tentacles very long, linear, 
truncate at tip, and beset with numerous acute papilla. The papille 
on the body are long and branching, but becoming more and more 
simple towards the margin and tail. Eyes distinct in front of the 
cervical tentacles. 
Length three and a half inches. 
Dredged at Lebuka, Feejee Islands. 
The peculiar coloration and graining of this animal are something 
like that of oak wood. 
Figure 271, the animal, as in crawling. 
JanTHiINA ExicuA (Lamarck), Anim. sans Vert., ix. 5. Encyel. 
Méthodique, pl. 456, f. 2, a, b. Sowrersy, Genera of Shells, f. 2. 
