1855.] 



379 



spots, and blotched with flake-white along the edges. Within, branchial striae 

 prominent, of a dark green color. Length 1 inch. 

 Hab. Loo Choo. 



33. Eolis hdmilis. Rather slender, wine-yellow ; branchiae dark brownish- 

 grey, wiih pale yellowish lips, arranged in six clusters, the first two of which are 

 biserial; dorsal tentacula serrated, orals long; anterior angles of the foot greatly 

 produced. Length 1 inch. 



Hab. China. 



GYMXODOPJS, n. g. Limaciformis, lavis. Polycerae affinis, sed appen- 

 dicibus branehiarum veloque carens, diversa. Branchiae etiara simplices. 



34. Gvmnodoris maculata. Elongated, obtusely rounded before, tapering 

 posteriorly to a slender pointed extremity; body smooth, translucent, of a pale 

 brownish color, spotted with bright yellow ; a ring of flake-white around the 

 base of the branchiae. Tentacula short, with eight oblique, dark brown laminae; 

 branchiae consisting of nine slender, transparent, unbranched leaflets, with blunt, 

 rounded, bright yellow extremities. Length f inch. 



Hab. Loo Choo. 



35. Polycera ? ramulosa. Large, higher than broad, swollen at the middle ; 

 back with a row of small branching processes along each side, those opposite 

 the branchiae bulbose ; head large, rounded above, subtruncate ; veil separated 

 as far as the tentacula, with a pectinated margin ; tentacula clavate, finely 

 25-laminate; branchiae small, ramose, with five principal trunks; color greenish, 

 with blackish patches ; a few orange dots on the sides. Length 2 inches. 



Hab. China. 



36. Idalia tentaculata. Very small, suboblong, pointed behind ; having two 

 large frontal cirri, and sixteen lateral ones, eight on each side, the posterior ones 

 bifurcate; head produced at the sides ; tentacula very large, clavate; branchiae 

 consisting of four thick tentaculiform processes, dentated along the inner sides, 

 in front of which on the middle of the back arises a single, very long cirri- 

 form appendage; color pale wine-yellow, with brownish spots along each side of 

 the flake-white median line; tentacula and branchiae chestnut-brown. Length 

 ^ in f, h. 



Hab. China. 



HEMIDORJS, n. g. Pallium postice adnatum. Reliqua ut in Doridibus. 



37 Hemidoris C03ruleata. Elongated-ovate, broad in front, convex along the 

 middle and depressed at the sides ; foot concealed by the mantle except posterior- 

 ly where they coalesce, the foot being produced for some distance beyond and 

 tapering to a point; mantle smooth, light-blue, margined with yellow; dorsal 

 tentacula 10-laminate, dark reddish-brown ; orals oblong; branchiae consisting 

 of nine blender, simply pinnate leaflets of a reddish color. Length \ inch. 



Hab. China. 



38. Doris ixdurata. Ovate, broadest posteriorly ; mantle covered with small 

 hard tubercles, somewhat distantly arranged in quincunx ; tentacula thick, 

 pedunculate, 12-laminate ; branchiae with fi^e well-branched plumes; head very 

 small, foot narrow in front and broadly rounded behind ; color lemon-yellow with 

 flake-white spots ; branchiae dark orange. Length 1 inch. 



Hab. China. 



39. Doris gibberosa. .Thick, slightly broadest before ; tubercles of the mantle 

 hard, rugose, very large along the middle of the back ; foot produced beyond the 

 mantle behind ; tentacula somewhat elongated, finely laminate, issuing from a 

 pair of the larger tubercles ; branchiae large, frondo^e, of fire plumes ; color dark 

 yellowish, tubercles purplish-brown, tentacula brownish-grey with white tips ; 

 branchiae lemon-yellow. Length \\ inch. 



Hab. China. 



