70 Mr. W. E. Collinge on the Anatomy of 



makes a bend to the left side and then dips down into a cavity 

 bounded by the pedal muscles. To this portion the short 

 retractor muscle is attached on the right side (PI. II. fig. 21). 



Paryphanta Edioardi, Suter. (PI. II. figs. 22-25.) 



Animal a deep blue, darker laterally than on the dorsum, 

 lilantie greyish white, with very fine sepia markings on the 

 collar, which is divided as in the genus Rhytida. Generative 

 orifice 8"5 millim. from the right upper tentacle. Rugse 

 irregular, very small posteriorly. Sulci bluish white. Peri- 

 podial groove ill-defined. Foot-fringe bluish white and finely 

 spotted, no lineoles. Foot- sole sepia-coloured, with a tinge of 

 blue in the median portion, not divided into median and 

 lateral planes. 



Length (in alcohol) 43 millim. 



The shell and radula of this species were described by 

 Suter in 1899 *. It differs considerably from the preceding 

 species. Suter regards it as standing nearest to P. atramtn- 

 tartUy Shuttl., from Victoria, a species I am unacquainted 

 with. 



A /I atomy. 



The Alimentary Canal. — The buccal cavity calls for no 

 special mention. The oesophagus enters on the dorsal surface ; 

 tracing this posteriorly it widens a little, forming the crop, 

 around which the salivary glands are closely wrapped ; the 

 ducts leave the anterior borders and enter th.e buccal mass at 

 the side of and just behind the oesophagus. Behind the crop 

 there is a thin tube-like portion of the canal, which again 

 widens beibre reaching the stomach. 



The ledal Gland (PI. II. figs. 23, 24) is very similar to 

 thiit in P. JHochstetteri, Pfr., differing, however, in its greater 

 length, measuring m situ 24 millim., and in turning forwards 

 and downwards to the left side. Imbedded in the pedal 

 muscles and quite distinct from this gland is a small glan- 

 dular body like that found in Rhytida Greenwoodi^ Gray, 



1 he Generative Organs (PI. II. fig. 25). — On turning 

 back the body-wall the penis is seen to lie in a veiy similar 

 position to that in P. Hochstetteri. It measured 58 millim, 

 in length. It is an almost straight tube, widening in the 

 distal half. In structure it is similar to that in the preceding 

 species. Being larger the vas deferens is easily made out 

 fiom the left side of the distal end of the penis to the union 

 with the prostatic canal. It is a simple tube not convoluted. 



* Proc. Malac. Soc. Lond. 1809, vol. iii. p. 290, pi. xv. figs. 14, 15. 



