OF CONCHOLOGY. 19 



front of each tentacle, and meeting round the branchial cavity ; 

 the space between these lines and the marginal band is marked 

 with purple dots. The back is marked with a median interrupted 

 cream colored stripe, in which are also disposed purple dots. 

 Along each side of the median stripe are several cream colored 

 spots, with central purple dots. Branchiae colorless. Tentacles 

 brown. The under surface of the mantle is same color as above, 

 but paler, the color being transmitted through the pellucid 

 mantle. 



Length, three quarters of an inch. 



Habitat, Island of Huaheine. 



Chromodoris varians, Pease. Plate 9, fig. 2. 



Animal subpellucid, flaccid, oblong, smooth, convex above, 

 slightly dilated anteriorly, and rounded at both extremities. 

 Branchial star small, only about one-half the width of the body, 

 and recurved ; plumules five, narrow lanceolate, pinnate, and 

 retractile into a simple cavity. Cervical tentacles large, sub- 

 erect, clavate, elongate, issuing from tubular cavities, closely 

 lamellated ; lamellae not very oblique, but close and deeply cut. 

 Labial appendages small and conical. Foot elongate, narrow, 

 slightly dilated in front, tapering posteriorly to a point, which 

 projects considerably behind the mantle. 



Color rose red, with a median dorsal white line extending from 

 the intertentacular space to the branchial star. Margin of the 

 mantle with yellow. Cervical tentacles rose red. Upper por- 

 tion of the branchiae purple violet. Under surface of mantle 

 same as above, paler. Foot pale purple violet. 



A variety occurs, on which the rose red of the upper surface 

 is replaced by purple violet, and branchial star with one more 

 plumule. 



Length, one inch. 



Habitat, Islands of Huaheine and Maiao. 



Station, (under stones in the upper region of the laminarian 

 zone. Motions lively. When in motion the anterior portion of 

 the mantle is kept flapping up and down continually. A. G.) 



