ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
69 
attention to the author’s description of the internal endings of the 
excretory system. The ciliated funnels are without the lid-cell charac- 
teristic of the funnel in related Trematodes, and the capillary strand 
passing from the funnel is formed by a single much elongated cell. 
Notes on Trematodes of Fishes.* * * § — Mr. W. G. Maccallum describes 
the anatomy of two Distomes parasitic on fresh- water fish. He points 
out that among the Trematode parasites on fishes there is a series of 
Distomes, which are evidently very closely related, possessing many 
characteristic features in common, such as the relations of the suckers, 
the form of the intestines, the position and arrangements of the genital 
and secretory organs, &c. Still there are points of distinction, and 
several species have been described, but until the descriptions of all 
such forms are collected and carefully compared, there must remain 
some obscurity as to their exact relations to one another. He gives a 
rather full description of a variety of Distomum isnporum, which he calls 
armatum , and compares it w T ith the classical description of D. isoporum 
given by Looss. The points of difference do not appear to be many or 
important. A new species of Distomum, D. lobotes, was found in the 
intestine of Anguilla chrysopa, Perea flavescens, and Stegostedion vitreum , 
and a detailed description is given of its structure. 
Incertae Sedis. 
Dinophilus.f — Herr W. Schimkewitsch gives an account of Dino- 
philus vurticoides 0 . Schm. from the White Sea. His general view of 
this interesting type is somewhat as follows. In its rope-ladder-like 
nervous system with five pairs of ventral ganglia, in the metameric 
disposition and differentiation of a pair of ventral longitudinal muscles, 
and in the metameric segmental organs, Din^philus is an oligomeric 
Annelid. But the ciliated rings, the ventral ciliated band, the double 
pre-oral ring on the head, and the superficial position of the ventral 
cord, indicate an embryonic character. 
The coelom is represented only by the genital cavities, and the 
segmental organs have no coelomic connection. In the male, the fifth 
pair of segmental organs enter at a late stage into connection with the 
genital cavity and form the seminal vesicles ; and it may be that the 
short oviducts are those of the sixth segment. 
In the development of the mesoderm from primitive mesoblasts, and 
from mesenchyme-Anlage separated from the endoderm, there is again 
resemblance with Annelids. So is there in the existence of a schizocoele 
along with a coelom (genital cavities). 
In the cleavage of the ovum, the caudal appendage, the sexual 
dimorphism, the state of the coelom, there is resemblance with Rotifers, 
but they have no mesolerm. 
New Enteropneuston.t — Mr. J. P. Hill now gives a full account of 
the new species of Enteropneuston, of which he published a preliminary 
account some time since.§ He finds that it belongs to tho genus 
* Veterinary Mag., ii. (1895) No. 7 (10 pp. and 8 figs.). 
f Ze tschr. f. wiss. Zool., fix. (1895) pp. 46-79 (3 pis.). 
1 Froc. Linn. Soe. N.S.W., x. (1895) pp. 1-42 (8 pis.). 
§ This Journal, 1894, p. 455. 
