PLATYHELMINTHES. 
Verm, 9 
Stylochus pelagicus^ Moseley (16), pp. 23-27, pi. iii. figs. 9-13. Eight 
pelagic Planariaus are now known. 
Dihothrium Ugula. Under this name, Donnadioii, J. do I’Anat. Phys. 
xiii. pp. 321-370, 451-497, pis. xiv.-xx., unites all the species which have 
been described as Ligula, 
Distoma sincnse figured and partly described ; W. Macgregor, Glasg. 
Med. Journ. 1877, pp. 1-15; appendix by T. S. Uobbold. 
Mesostomum morgiense, Du Plessis (8), pp. 259-278, pi. v. 
Mesodiscus inversiporus, Trieste, closely allied to Prosthiostomum, 
Ulianin, and Opisthoporus tergestinuSf allied to Leptoplana ; Minot 
(13). 
Plagiostomum caspium, p. 85 ; Polycelis scTiulmani, p. 87, pi. iii. figs. 2 
& 3 ; Clepsine cmcum^ p. 95, gg. & spp. nn., Trieste ; Gromma (Aralo- 
Caspian Exp.). 
Arhyncotcenia critica (cyst on liver of Hyrax capensis), Pagen- 
stcchor (20). 
Monostoma {Glenocercaria) lucanica^ p. 200, Distoma {Gymnoccpliala) 
ascoidea, p. 201, (these two in liver and intestine of Planorhis) [the 
latter is described as a free Cercaria, “agreeing with the description of 
C. minuta, Nitzsch, which is found with various fresh-water mollusks in 
Europe I ”], D. appendiculata (from Selix arhorea), p. 202 ; J. Leidy, P. 
Ac. Philad. 1877. 
Tcsnia insignis, from the digestive caual of Carpophaga oceanica, 
Lesson ; Steudener (22). 
Staphylocystis bilai'ius, Yillot (23). The name Staphylocytes is pro- 
posed for those larval forms of Cestoda in which gemmation is external 
and not internal ; found in Glomeris limhatuSy Latr. S. microcantlius, 
id. (24), pp. 352 & 353. 
No names or descriptions, save “ little,” “ white,” “ black, with small 
tubercles,” are to be found in J. D. Macdonald’s paper on a new genus of 
Trematoda, and some new or little-known parasitic Hirudineay Tr. L. S. 
(2) i. pp. 209-213, pi. xxxiv. ; as an apology, the writer states that the 
paper was written without any opportunity of consulting recent re- 
searches on the subject. 
Liustow records the presence of the following forms in higher animals 
or new localities, or gives a description of them : — 
Distomum planorhis-carinati, Philippi, Lake Katzeburg ; D. macro- 
phallus, Linstow (in Totanus fuscus) ; D. spinulosum, Rud., xiii. fig. 14, 
Lake Ratzeburg; D. baculus, Dies., xiii. 15. 
Dactylogyrus dujardinianuSy Dies., is a doubtful species. 
Ilolostomum sphcerula, Duj. ; II. cornUy Nitzsch ; H. variabile, Nitzsch ; 
R. gracile, Duj., xii. 17 ; H. erraticum, xii. 18 & 19 ; H. cornucopice, xii. 
20, 29 & 30. 
2'ctracofyle perccn-jfluviatilis, Moulinid, xiv. fig. 23 ; T. typica, Dies., pt. 
(= T. lymncd, Pagenstecher), this form is only found in Mollusca (and 
not in fishes or birds, as Diesing’s species would make it) ; T. crystallina, 
Rud. (= Distomum crystallinum, Rud., pt., = D. crystallinum, Pagen- 
stecher). 
