Mr. H. N. Moseley on Peripatus novae-zealandiaa. 87 



essential structure exactly similar to tliose of F. cape^isis ; but 

 the organs differ in that the prostates are considerably larger in 

 proportion to the testes in P. novce-zealandiw. The testes 

 are placed one above the other in the body-cavity in both 

 species. 



The common termination of the male ducts is very muscular, 

 and evidently acts as an intromittent organ. It is more 

 developed in P. novce-zealandice for this purpose than in P. 

 capensis. It twists under the nerve- cord to reach the external 

 generative aperture on the right side, as in most cases in P. 

 capensis. 



This enlarged terminal duct or penis was found in P. novce- 

 zealandice to be provided with a mass of unicellular accessory 

 glands imbedded in its wall, in an enlargement near its 

 outward termination. It contained in some cases a long 

 sperm atophore, forming a stiff rod distending the whole length 

 of the enlarged duct, and composed of felted spermatozoa. 

 The connexion of the vasa deferentia with the penis was not 

 properly made out, nor the junction of the left duct with the 

 right. The arrangement is possibly different from the peculiar 

 one existing in P. capensis. 



Captain Hutton has evidently mistaken portions of sper- 

 matophores present in the upper part of the oviduct for the 

 testes. Large masses of spermatozoa penetrate the oviduct 

 and pass right into the ovary in a similar manner in P. capensis 

 (see my paper, pi. Ixxiv. fig. 1 a) . Captain Hntton must 

 have been entirely deceived in imagining he saw vasa de- 

 ferentia. Had he established his position, P. novce-zealandice 

 would have been not only an hermaphrodite, but one of the 

 most extraordinary in existence, considering its affinities. The 

 testes are, according to him, mere appendages of the oviduct, 

 with very short ducts opening into the oviducts close to the 

 ovary ; and he avers that the ova are fertilized in the oviduct 

 immediately on their leaving the ovary, on their reaching 

 these openings of the male ducts. These are his words {I. c. 

 p. 367) : — " On passing the vesiculee seminales it (the ovum) 

 becomes fecundated, and total segmentation ensues." P. novce- 

 zealandice would thus be a self-impregnating hermaphrodite 

 according to our author, in which cross-fertilization would 

 never occur. 



With regard to the development of the jaws, Captain 

 Hutton's description runs {I. c. p. 367), " Two large oval or 

 pyriform swellings arise from the lower surface of the 

 cephalic lobes, just in front of the opening of the gullet ; a 

 longitudinal depression is formed in each of these by invagina- 

 tion ; and in these depressions the teeth are subsequently 



