130 MESSRS. ALDER AND HANCOCK ON 



yellowish. Head small ; the mouth minute, opening on the anterior margin of the 

 foot. Foot pale yellowish, freckled with black both above and below. Length about 

 an inch. 



Not uncommon. A single specimen is in the collection. 



DORIDOPSIS MINIATA, U. Sp. (PI. XXXI. figS. 18, 19.) 



Body oval, much depressed. Cloak vermilion-coloured, paler at the edges, and 

 covered with rather distant, rounded tubercles of nearly equal size, becoming smaller 

 towards the margin. Dorsal tentacles conical ; with numerous dark laminae, only divided 

 in front by a delicate ridge ; apex rather blunt ; margin of the cavity slightly raised. 

 Branchial plumes five, tripinnate, scarlet, two in front and three behind ; the anus is 

 excentric, terminating on the left side close to the root of the left anterior plume. 

 Head very indistinct, indicated by an arched ridge immediately in front of the foot ; 

 the mouth is very minute, opening in a cleft on the anterior margin of the latter. Foot 

 scarlet, nearly equally and sharply rounded at both ends: the smooth anterior area very 

 limited. Length 1^ inch. 



A variety is of a much paler colour, with the centre of the back nearly black. 



Spawn scarlet, forming an irregularly convoluted riband. 



Doridopsis miniata is remarkable on account of the excentric position of the anus, at 

 the side of the branchial plumes. This character is observed, in some degree, in the 

 two preceding species, where the presence of a central posterior plume occasions a slight 

 displacement of the anal opening. 



Common : four or five specimens are in the collection. 



Family POLYCERID^E, Alder &f Hancock. 



Cloak small or obsolete, spicuiose, generally with marginal appendages. Dorsal 

 tentacles variable. Oral tentacles frequently wanting. Mouth provided with a spinous 

 prehensile tongue, and generally with a spinous collar or horny jaws. 



Genus Goniodoris, Forbes. 



Body elongate, prismatic or subquadrate. Cloak small, short, with a scalloped 

 margin, exposing the head and foot. Dorsal tentacles laminated, non-retractile. Oral 

 tentacles flattened. Branchise plumose, surrounding the vent on the medio-dorsal line, 

 non-retractile. Tongue narrow, with four spines in breadth ; the two next to median 

 line large : no central plate : a spinous buccal collar. 



