$4 CALIFORNIA ACADEMY OF SCIENCES. 
That the glandular crop really exists in P. Murionis is evident from Perrier’s drawing 
(fig. 22, pl. xvi), though I cannot accept the epithelial nature of the cells. Perrier 
says nothing of the place from which this drawing is taken, but I suspect that it was 
from a section of the intestine between the tubular and sacculated parts, similar as in 
P. Michaelseni. 
LITERATURE. 
Bepparp, Fr. E. Abstract on Some Investigations into the Structure of the Oligochwta. Ann. Mag. Nat. Hist. 
Jan., 1891, p. 96. 
Bepparkpb, Fr. E. Some New or Little Known Oligocheta. Proceedings of the Royal Physical Society, Edinburgh, 
June 13, 1893. 
Bepparp, Fr. E. On the Anatomy of Oecnerodrilus. Proc. Royal Society of Edinburgh, vol. xxxvi, p. 563. 
Micuartsen, W. Terricolen der Berliner Zoologischen Sammlung II, page 14. 
Benuam, W. B. An Attempt to Classify Earthworms. Quarterly Journal of Microscopical Science, vol. xxxi, 
part il, page 243, ete. 
Rosa, DANrIeLE. Sui Generi Pontodrilus, Microscolex, e Photodrilus. Boll. Mus. Torino, vol. iii. 
Rosa, DanieLe. Die Exotischen Terricolen des K. K. Naturhist. Wien. Annal. K. K. Nat. Hofmus. Wien, Bd. vi, 
p- 387. 
Etsen, G. Anatomical Studies on New Species of Ocnerodrilus. Proc. Cal. Acad. Sci., ser. 2, vol. iii. 
Etsen, G. Anatomical Structure of Two Species of Kerria. Proc. Cal. Acad. Sci., ser. 2, vol. iii. 
Perrikr, EpMonp. Etudes sur l’Organisation des Lombriciens Terrestres. IV Pontodrilus. Archives Zoologie 
Experimental, vol. ix, pages 175 to 248, pl. xiv. to xviil. 
Eclipidrilus frigidus Eisen. 
Through the kindness of a friend traveling in Sierra Nevada I have received a 
small number of specimens of this interesting oligocheeta, but unfortunately all the 
specimens were in a poor state of preservation and much macerated. However 
I was enabled to make several very nearly continuous series of sections and thus settle 
several very important points in the anatomy of this worm. My former study of the 
species was entirely dependent on dissection, which could not possibly reveal all the 
details of this minute species, especially as regards the spermducets, the presence of 
which I am now able to demonstrate. My present researches show that the species 
is less erratic in its anatomy than I first supposed, while again in many respects it 
differs strangely from its nearest allies, the various genera of Lumbriculide. For 
the present I retain the family of Eclipidrilidee, but not on the same grounds as 
formerly, and I now consider it rather as a subfamily to Lumbriculidee than one 
standing isolated, however with strong leaning towards Moniligaster. 
The generative organs are situated as follows: 
Testes, two pair. The anterior pair attached to the anterior septum of somite 
ix. The posterior pair similarly to the anterior septum in somite x. 
Ovary, one pair attached to the anterior septum of somite xi. 
Oviduct in xii, opening in front of the inner pair of sete. 
Spermathece, one pair in ix opening posterior to the setze and near the posterior 
septum. 
Atrium and prostate, one pair opening in x, posterior to the inner pair of sete. 
This organ, which is very long, occupying seven to eight somites, consists of three 
parts, first, one anterior atrium and prostate proper, second, a thin and narrow part 
