NOTES ON THE H ISTJUOJIDELEID/E. 
223- 
maturation and fertilisatioiH a much more abundant material 
is required than is at present available. 
Masses of sperms are almost always to be found on each 
side in front of the third cirri and genital apertures. The 
appearances which these present vary very greatly. In one 
of the series of sections of the Tasmanian species previously 
described by me^ the main mass of sperms is contained in 
what has the appearance of a case corresponding in form to a 
cast of the interior of the penis (6, pi. 15^ fig. 12). Tliis I 
supposed to be a spermatophore, and a re-examination of the 
sections strengthens the conclusion. In some series of sections 
of S. novae-hollandia) similar appearances are to be 
observed, though here the case of the spermatophore, if sucli 
it be, is rounded in form. In other series no trace of such a 
case appears. In one instance a stream of sperms is trace- 
able backwards to the dorsal surface, where it is continued 
through the integument. It would thus appear that in the 
process of hypodermic impregnation the case of tlie sperma- 
tophore may or may not be passed into the interior of tlie- 
impregnated female. 
Literature.' 
1 . Beauchamp, P. de. — “ Sur la presence dTin hemoccele chez Diiio- 
pliilus,” ‘ Bull. Soc. Zool. France,’ t. xxxv, 1910, p. 18. 
2 . Eisig, Hugo. — “ Znr Entwickelungsgeschiclite der Capitelliden,” 
‘ Mittlieil Zool. Stat. Neapel,’ Bd. xiii, 1899. 
3 . Foettinger, Alexander. — “ Reclierches sur rorganisation d’Histri- 
obdella liomari, etc.,” ‘Arch. Biol.,’ t. v, 1884. 
4 . Fraipont, J. — “ Le genre Polygordius,” ‘ Fauna u. Flora des Golfes 
V. Neapel,’ xiv, 1887. 
5. Goodrich, E. S. — “ Nerilla an Archiannelid,” ‘Quart. Journ. Micr. 
Sci.,’ N.S., vol. 57, 1912. 
6. Haswell, W. A. — “On a new Histriobdellid,” ‘Quart. Journ. Micr. 
Sci.,’ N.S., vol. 43, 1900. 
7. Nelson, J. A. — “The Morphology of Dinophilus Conklini,” 
‘ Proc. Acad. Nat. Sci. Philad.,’ 1907. 
' For other references see 5 and 6. 
