Dr. Philippi on two new Species of Euplocamus. 89 



but are otherwise perfectly similar. Both are arborescently 

 ramified. The anal bronchia are situated nearly in the same 

 line with the penultimate side branchiae, are five in number, 

 the odd one bent forwards and bipinnate. They appear 

 not to be retractile. The anus stands directly behind them 

 in the form of a small tube. The mouth is situated on the 

 front side inferiorly, and exhibits in the specimen preserved 

 in spirits a perpendicular fissure and several cross folds. At 

 some distance in front of this is situated on each side an oval 

 epidermal fold, which in an expanded state must form mode- 

 rately long inferior tentacula. The dorsal tentacula are 5"' 

 long in the drawing, and consist as in Doris of a cylindrical 

 stem and a pointed foliaceous club ; they are also in like man- 

 ner retractile into cavities, as proved by the specimen in spi- 

 rits, where only two curved apertures are to be seen in their 

 place. The orifice for the organs of generation is on the right 

 side, somewhat before the third branchia. The colour is 

 orange-yellow, with some scarlet-red points. The small warts 

 represented in the drawing cannot be distinguished on the 

 preserved specimen. Euplocamus croceus approaches by its 

 colour and other characters near to the present species; but it 

 is certainly distinguished, 1. by smaller size and especially far 

 less breadth; 2. the lateral branchiae are proportionally much 

 longer, and only ramified once; 3. the anal branchiae are al- 

 most simple, and only furnished with a pair of short filaments 

 towards the clavate extremity. 



Euplocamus cirriger ; sordide roseus, branchiis lateralibus utrinque 

 5, anticisque 4, filiformibus, branchiis analibus 9, filiformibus, 

 ciliatis branchiis ? succedaneis filiformibus in dorso quinque. 

 Plate III. fig. 2. 



The specimen in spirits, appearing but slightly contracted, 

 measures 8" { in length, 3'" in breadth, 2jJ" in height ; the 

 drawing is 18'" long and 6" ! broad. The form of the body is 

 again parallelopiped, truncate in front, narrower posteriorly ; 

 the foot however projects further out than in the other spe- 

 cies, and terminates posteriorly with a subulate filament, which 

 is not represented in the drawing. The upper border or the 

 margin of the cloak also projects in the form of a narrow epi- 

 dermal fringe. On each lateral margin are five long filiform 



Ann. Nat. Hist, Vol.4. No. 22. 0^.1839. h 



