502 
VERMES. 
V. TREMATODA. 
1. Giahd, a. Sur Penkystement du Bucephalus hahneamcs. C. R. 
Ixxix. pp. 485-487 ; Ann. N. H. (4) xiv. pp. 375-377. 
2. McOiiADY, J. Observations on the food and the reproductive organs of 
Ostrea viryiniana, with some account of Bucephalus cuculus, sp. n. 
P. Bost. Soc. xvi. pp. 170-92. 
3. Zeller, J. Ueber Leucochloridium paradoxum, Cams, und die weitere 
Entwickelung seiner Distomen-Brut. Z. wiss. Zool. xxvi. pp. 564- 
678, pi. xlviii. ; abstract in Arch. sci. nat. li. pp. 366-370. 
Short abstracts of 3 papers by Zeller, W.-Suhm, and Linstow, on 
Trematoda [Zool. Rec. ix. p. 428] are given in J. Zool. ii. pp. 61-65. 
Also a fuller abstract of Van Beneden^s paper on the Helmintlis of the 
Bats [oj>, cit. x. p. 482], 1. c. pp. 113-116, & 308-335. 
Giard (1) has discovered Bucephalus haimeanus encysted in the liver, 
genital glands, and peritoneum of Bclone vulyaris. MoCrady (2) roughly 
sketches a new species from the Virginian oyster. The researches and 
ingenious experiments of Zeller (3) have shown, that the small flukes 
found, encysted in their own epidermis, in a rather advanced state of 
development, and engondorod in the sporocysLs of Leucochloridiiuu 
(which have in colour, appoaranco, and movements such a striking like- 
ness to certain dipterous larva)), are the larva) of Disiomum macro- 
stomum, Rud., which lives in its mature state in the intestines of robins, 
nightingales, wagtails, and other Sylviidce. These birds greedily devour 
the mature worm-like sporocysts when protruded from the dilated tenta- 
cles of Succinece. D. holostomum, Rud., from the water-hens (MalluSj 
Gallmula), which devour the Succinece themselves, is evidently the same 
species, only larger, in accordance with its different habitat. The 
identity of anatomical structure in the larval and adult D. holostomum is 
proved and illustrated. 
VI. CESTOIDA. 
1. Krabre, H. Diplocotyle Olrikii^ en uleddet Boendelorm af Bothrio- 
cephalernes Gruppo. Vid. Medd. 1874, pp. 22-25, pi. iii. ; abst., J. 
Zool. iii. pp. 392-395. 
Unsegmented (segments fused together) ; two terminal suckers ; genital 
pores in the middle line of the ventral surface. Found in the intestine 
of Salmo carpio, Greenland, sexually mature. Remarks are appended on 
the different degree of individualization (independence of segments), 
duplicity of sexual organs, &c., in the Bothriocephalidce. 
2. Mai, S. Sulla tenia. Lettera al Antonio Rota. Milano : 1874, 
16 pp. 
[Not seen by the Recorder.] 
3. Mambrini, D. Dei cisticerchi e del cisticerco cellulose negli animali 
suini in particolare ; studi e osservazioni. Mantova: 1874, 30 pp. 
[Not seen by the Recorder.] 
