Report on the zoological collections made in the Indo-Pacific Ocean ...

MOLLTTSCA. 91tho latter name should be retained, having a few months' priority ofpublication.The single specimen from Torres Straits agrees with the excellentdescription given by Mr. Abraham except in respect of the greaterproportional length of the caudal portion of the body, which equalshalt the entire length of the animal, and the greater breadth of thefoot, two differences probably due to the various degrees of contractionat death.134. Doris (Platydoris) infrapicta.Body flattened, elongate oval. Mantle softish, fleshy, finelygranular above, smooth beneath the widely expanded border. Footbroad, rounded at both ends, widely spreading all round exceptbeneath the mouth, where it is more narrowly expanded, and has anarrow lamina above, which is notched in the middle and is produceda little in advance of the edge of the foot itself. Oral tentaclescompressed, curving forward. Ehinophores short, with comparativelyfew lamina?, pointed at the apex. Branchial plume sixlobed,each lobe trifurcate above, surrounding the small centralyellow six (?)-lobed anus.Colour pale buff, variegated with a dirty brownish tint above.Beneath, the mantle-expansion is copiously stained and blotched withdark chocolate-brown, except near the border, which is pale andunspotted. Foot spotted with the same colour, especially towardsthe centre, the margin being pale and destitute of markings.Length 50 millim., width 3'2 ; foot 43 long, 18 broad.Uab. Queensland, 4 fms.This species appears to be closely related to D. inframaculata,Abraham, from Amboina. It differs in coloration somewhat, thegreater width of the foot, which is not " truncate in front," thesofter character of the mantle, and the coarser granulation, of itsdorsal surface.135. Plocamophorus insignis. (Plate VI. figs. L, L 1.)Body elongate, ending posteriorly in a laterally compressed andobliquely truncate termination ;(in spirit) of a pale colour, dottedwith black along the sides close to the foot, on the oblique carinatemargin of the posterior end, and on the sides of this caudal extremity,which also exhibits a few small rounded tubercles. Branchialplume a little posterior to the middle of the back, trilobed, one lobecentral, anterior, the other two lateral, one on each side, bifurcate,all branching above. Anus stellate, situated between the laterallobes. On the back, a little behind the branchiae, is situated a singleblack-spotted elongate papilla on each side. Foot elongate, with adouble margin in front, finely tuberculated in the groove betweenthe two edges, much attenuating posteriorly. Head with thefrontal margin black- dotted, bearing a fringe of about eight slenderprolongations ; beneath this and between it and the mouth is a