90 Transactions of the South African Philosophical Society. 



5. M. vexillifera, B. 



M. Japon. 



6. M. papulosa (de Filippi). 



M. Japon. 



7. M. hucephala, B. 



M. Siamense. 



8. J/, capucina, B. 



M. Philippin. 



9. -U. pilosa, Pease. 



M. Pacific. 



10. M. leonina (Gould). 



M. Pacific. 



11. M. australis, Angas. 



M. Pacific. 



Melibe rosea, Rang. 

 Rang, Man.— des moll., 1829, p. 129. pi. iii., lig. 3. 

 PI. IX., figs. 1-12. 



At Woodstock Beach, Table Bay, 10 individuals of this forn-i were 

 procured, of which 2 wex'e dissected. 



They varied in length from 1-5-3-8 cm. The largest was very 

 hardened, the cowl-shaped head quite contracted, and all the papillae 

 of the back fallen off. Two other specimens were 3-2 cm. long by a 

 breadth of the body proper of 0-8 and a height of 12 ; the head 

 11 mm. broad and 11 mm. long on the upper side, beneath merely 

 3 mm. long; the stalk of the rhinophores 2 mm. high, the epinotidia 

 of the back up to 8 mm. in height ; the breadth of the foot 4, the 

 length of the tail 6 mm. The animals were uniformly whitish ; living 

 they varied according to Prof. Gilchrist from white to yellowish I'ed, 

 usually the latter. 



In the form of the body the animal agrees with other Melibes. 

 The lanje coiul-shaped head with a little thickened refolded edge 

 provided with 2-4 close-set series of cirrhi (fig. 1), which are 

 conical, somewhat constricted at the base, up to 0'6 mm. high, 

 but often contracted, especially the innermost ; the outside of the 

 capuchin shows under a strong lens (fig. la) very fine nodules 

 formed of small groups of glandular cells ; the thickness of the 

 cowl up to 1 mm. ; it showed the muscular bands, circular, and 

 especially longitudinal, very distinctly shining through ; the inside 

 of the cowl quite the same as the outside ; median in the bottom of 

 its cavity somewhat beneath the centre, the roundish mouth with 

 circular prominent lip, the diameter of the whole region 2-5 mm. ; 



