GODWIN-AUSTEN : PAEYPHANTA. 7 



phore thus differs considerably from the globose form usually seen in 

 other genera. 



There is no jaw, the area occupied by it in other forms being very 

 muscular and highly contractile in a crenulate manner all round. 

 This form of mouth would give the animal the power of first adjusti- 

 bility, and secondly retention on contraction. At the same time the 

 elongate form of the odontophore points to its being capable of pro- 

 trusion far forward ; these characters with the great size and strength 

 of the muscular buccal mass are quite in unison with its carnivorous 

 habits. The widely spreading foot would also have a great power of 

 adherence to any surface, and also of enveloping the stalk on which it 

 was climbing. 



The radula is broad and long (67 X 1 X 67), the rows forming an 

 acute angle directed backwards. 



The centre tooth is small (Fig. 6), half the size of the following 

 admedian teeth, and is short and straight sided. The median teeth 

 are long aculeate, flatter on the inner than on the outer side, the 

 points slightly bending inwards like those of swords ; there is a 

 gradual transition to the outermost laterals, no marked change of 

 form occurring, the teeth getting shorter until of a triangular shape. 



The nervous system is well shown, throwing off nerves to every part 

 of the foot. A very large salivary gland of thick elongate shape 

 extends centrally to that part of the foot where the principal muscles 

 are attached. 



The generative aperture is in the usual position. The male organ 

 (Figs. 10, 11, 12) is elongate, simple, with the retractor muscle at 

 the very end. The vas deferens is short and unites with it very low 

 down, not far from the generative aperture ; it is convoluted for nearly 

 its whole length and lies close to the side of the oviduct.^ The sper- 

 matheca (Fig. 13) is moderately short and pear shaped. 



The male organ being of a dark colour, like the eye tentacles, it may 

 at first sight be taken for one of them, but the greater size soon 

 distinguishes it. For about half way up, or 17 mm., to above the 

 junction of the vas deferens, the sheath forms a tube, with sides having 

 long parallel ridges : here there is a blunt knob (Fig. 12) with little 

 nipple-like crenulations round it ; the posterior portion is thence solid 

 and muscular. 



While examining this species I received a very interesting paper ^ 

 from the author, Mr. C. Hedley, wherein he describes and figures 



1 This peculiarity is also to be seen in Testacella, a specimen of ■which as a jawless 

 land mollusc I dissected at the same time as Paryphanta. My specimen came from 

 Gloucestershire and I took it to be T. haViotiden. This shews a close convolution of 

 the vas deferens for a short distance, and just where it first becomes a free tube. Mr. 

 W, E. CoUinge, in a paper (Annals and Mag. Nat. History July, 1893) I have 

 received since reading this communication, alludes to this curious distinction in 

 T. maufiei, Fer., and gives a drawing of it, PL i., fig. 3, and to him is due the 

 credit of first calling attention to this ciu-ious divergency of character and one which 

 I have never met with in any other group. 



- '^ Schizofflossa; a new genus of carnivorous snails," Proc. Linn. Soc. New 

 South Wales, ser. ii., vii., pp. 387-92. 



