392 Mr. A. G. Butler on Nocturnal Lepidoptera 



the ovules ; but the latter are distinguished by their oval 

 form." The ovules are spherical, and not oval ; but the other 

 facts are fundamentally correct. It is also in error that Du- 

 vernoy adds (p. 133) : — " The Eels and the Lampreys have 

 no deferent canal, any more than an oviduct. Like the ova, 

 their semen ruptures the capsules in which it has collected, 

 and diffuses itself in the abdominal cavity, whence it is ex- 

 pelled in the same way as the ova." But he correctly 

 describes the place of opening of the peritoneal canal, the 

 ureters, &c. 



Valenciennes thought that the external characters regarded 

 as serving to establish specific division among the common 

 Eels might be due to difference of sex, and that, for example, 

 the pimpeneau {glut-eel of the English) was the male of the 

 plat-hec {grig-eel of the English). Nevertheless he did not 

 venture to assert that such was the case (Diet. d'Hist. Nat. 

 1867, tome i. p. 548). 



Syrski (Sitzungsb. Akad. Wiss. zu Wien, Bd. Ixxix. 1874) 

 has described and figured the homologies between the flat- 

 tened lobulated testes of the Eels and their ovaries, the absence 

 of ovules in the former coexisting with their presence in the 

 latter. He particularly made known the deferent canal and 

 its cloacal opening, but without determining the characteristic 

 testicular structure of the lobules. 



Lastly, Dareste (' Comptes Rendus,' 1875, tome Ixxxi. 

 p. 159) fully confirmed these observations upon the pimper- 

 neaux as regards the external anatomical character of the 

 male organ. Among Xho. pirnperneaux he notices some female 

 individuals. The Indian Anguilla marmorata also furnished 

 him with males. 



XXXIX. — On a Collection of Nocturnal Lepidoptera from 

 the Haioanan Islands. By Arthur G. Butler, F.L.S., 

 F.Z.S., &c. 



[Contiuiied from p. 333.] 



Tortricidse. 

 Chiloides, gen. nov. 



PcecUscce affine genus ; difFert autem palpis longioribus infra bene 

 ciliatis, cihis antice productis ; capita piloso. Alae posticce ramis 

 secundo et tertio medianis bene separatis, petiolo nuUo. 



This genus has the form and general aspect of Pcedtsca, 

 with which it seems to agree in the neuration of the prima- 



