72 Tmmactions of the South African Philosophical Society. 



to 8 mm. ; the breadth of the back between the lateral arbusculi was 

 13 mm., the height of these rose to 11 ; the height of the body 

 proper 13 mm. ; the height of the rhinophores was 10, the length of 

 the gill-leaves 7 mm. ; the breadth of the head with the tentacles 

 IG mm., of the tentacles themselves 5 ; the breadth of the foot in 

 front 15, that of the brim 3, the tail 6 mm. long. 



The form of the animal as in other Euplocamis ; the strongly 

 developed, rather large, somewhat curved frontal veil had in all the 

 specimens 8 arborescences, of which the outermost was a little 

 larger. The head rather broad with ear-like tentacles (fig. 18) ; in 

 the largest individual the mouth tube was inverted and the bulbus 

 pharyngeus projected to a length of G mm. The sheath of the 

 rhinophores low, in one specimen the organs were nearly quite 

 retracted ; the stalk was a third of the height of the whole organ ; 

 the club with about 40 lamellae and short end papilla. The back 

 somewhat convex, smooth, sloping backwards ; from the narrow 

 brim projected, at somewhat equal intervals on either side, in all 

 individuals, 4 strong arborescent appendages, the first near the 

 rhinophore, the last at the root of the tail. They were of the usual 

 form (fig. 19), mostly tripinnate, the branchlets mostly more or less 

 pointed ; the mostly somewhat lower frontal arborescent tufts of the 

 same nature as the dorsal. The gill formed of 5 sometimes bifid 

 tripinnate leaves, situated at about the last third of the length of the 

 animal. The truncate anal papilla 1-5 mm. high ; at its root to the 

 right the fine renal pore. The sides of the body smooth ; the genital 

 papilla in one individual contracted, in the other the everted penis 

 with its pricputium projected 7 mm. (fig. 20), and from its point also 

 the armature of the seminal duct to a length of 0-5 mm. (with a 

 diameter of 0-12). The foot not narrower than the back; the 

 anterior margin straight with a simple furrow ; the tail with a slight 

 crest with small arborescent tufts. 



The nervous system nearly quite as formerly described ='= in the 

 Eupl. croceus, Phil. The lamellae of the club of the rhinophores 

 had no calcified cells nor had their stalk, and in the skin of the back 

 only few and small, never true spicules. 



The mouth tube 4 mm. long, wide. The whitish bulbus phanjngeus 

 6-5-7 mm. long by a breadth of 5-0-6-5 and a height of 5-75, its 

 form and structure quite agreeing with that of the E. croceus.i The 

 yellow mandibular plates (fig. 21) 3 mm. long, somewhat longer 

 than in the typical form, otherwise as in this, as also its structure ; 

 the diameter of its elements 0-005 mm.^ The rather broad, some- 

 • Cf. I.C., i., 1880, pp. G28-G29. taf. xii., figs. 10, 11 ; taf xiii fig 3 

 t Cf. Ic. pp. 630-631. » Cf.Z.c.,p.G30,"' 



