380 [June, 



40. Doris olivacea. Large, thick and strong, rugose, half as broad as long, 

 dark olivaceous ; mantle with large greenish tubercles, largest about the middle ; 

 dorsal tentacula smoothish, with conical 20-laminate extremities ; orals oblong ; 

 branchial plumes largest. Length 3 inches. 



Hab. Loo Choo. 



41. Doris rogersii. Convex, oval, of a pale-brown color with darker clouds; 

 mantle covered with minute crowded, slender papillae, like short hairs; foot not 

 reaching the edge of the mantle ; tentacula short, blunt, broadly laminate, of a 

 purplish-brown color ; branchiae formed of nine small colorless leaflets project- 

 ing but little beyond the margin of the cavity in which they are expanded ; anal 

 papilla large, black. Length f inch. 



Hab. Kikaisima. 



42. Doris areolata. Small, convex, mantle tuberculated ; branchiae con- 

 sisting of eight short leaflets, the superior one much the largest. Colors : 

 mantle bright green, with a rectangle defined in purple between the tentacula 

 and the branchiae, from the corners of which yellow lines extend to the margin ; 

 foot, branchiae and tentacula of a pale lemon color. Length inch. 



Hab. Boninsima. 



43. Doris nigra. Small, subelliptic, somewhat elongated, depressed ; mantle 

 smooth, the foot produced beyond it ; tentacula obliquely 9-laminated ; branchial 

 cluster small but produced and nearly erect, with eight simple pinnate leaflets. 

 Color variable, usually black, always very dark ; mantle often dotted with white 

 and margined with red ; tentacula always tipped with white. Length J inch. 



Hab. Loo Choo and Kikaisima. 



44. Doris latens. Oval, mantle covered with minute tubercles ; foot pro- 

 duced a little beyond the mantle; dorsal tentacula finely 20-laminate; orals 

 slender; branchiae with six slender pinnate plumes, contractile into a large 

 cavity, the lateral ones longest but not reaching the margin uf the body ; anal 

 tube with a white star-iike extremity. Colors : body everywhere variegated with 

 black, brown and white, and punctate above with flake white. Length 1 inch. 



Hab. Loo Choo. 



45. Onchis pruticosa.. Oval, thick, of a dark greenish color mottled with 

 yellowish ; mantle covered with small papillae of different sizes, the larger ones 

 with 1-3 oculiform black dots at their summits, those on the posterior half of the 

 body elongated and covered with stvliform branches ; the mouth-disc large, bilo- 

 bate ; tentacula oblong, with tbe retractile eyes at their summit ; foot much 

 shorter than the mantle, of a pale yellowish color. Length 1 inch. 



Hab. Kikaisima. 



TURBELLARIA. 



46. Eurylepta interrupta. Oval, of a pale brown color, with a median line 

 of black blotches ; margin ornamented with brown, orange, black and white, 

 concentrically arranged, and interrupted at short intervals all around, except in 

 front; tentacula prominent, marginal ; ocelli cervical, in two lunate patches, con- 

 vex forward, one behind the other. Length f inch. 



Hab. Loo Choo. 



47. Eurylepta guttato-marginata. Oblong-ovate, slightly broadest behind, 

 white, with a series of purple spots along the margin ; tentacula short ; ocelli few 

 in number, in a single cluster on the neck behind the tentacula. Length ^ inch. 



Hab. Loo Choo. 



48. Eurylepta fulminata. Oblong-oval, dark greenish, with oblique streaks 

 of bright red on each side of the back, at the middle of which they form acute 

 angles ; tentacula broad, close together at the anterior extremity ; ocelli in a single 

 cluster on a minute oval papilla at the neck. Length lj inches. 



Hab. Loo Choo. 



