20 Verm, 
VERMES. 
Perrier (54) concludes, from his examination of the typhlosole, that 
this invagination of the intestine belongs to the vascular system. 
Moseley (15) describes the colouring matter of a green Eteone and of a 
Sabella. 
Chatin’s first paper (Ann. Sci. Nat. 6, v. No. 9) on the history “ du 
batonnet optique chez les Grustac^s et les Vers,” deals only with the 
Crustacea, 
Myzostomata. 
58. Graff, L. Das genus Myzostoma^ F. S. Leuckart. Leipzig ; 1877 
11 pis. 
This volume deals with the anatomy of M. glabrum and M. cirriferum. 
The following new species, all from the Philippines (Bohol), are 
described : — M. elegans, p. 22, pi. x. figs. 1-3 ; M. elongatim^ p. 22, pi. xi. 
figs. 1 & 2 ; AT. duhium, pp. 22, pi. ix. figs. 2-5 ; M. cornutum, p. 23, pi. x. 
figs. 4 & 5 ; if. brachiatum, p. 23, pi. ii. fig. 2 ; if. verrucosum, p. 23, pi. ii. 
figs. 5 & 5 A ; if. lobatum, p. 24, pi. ii. figs. 3 & 4. As to its systematic 
position, he would unite it with the Tardigrada and Linguatulida as 
belonging to the Stelechopoda ; a group regarded as intermediate between 
Vermes and Arthropoda, and distinguished as consisting of forms, not 
distinctly segmented, hermaphrodite, without distinct circulatory or 
respiratory organs, and possessing rudiments of four pairs of foot-stumps. 
A list of the Crinoid hosts is added. 
59. Giard, a. Sur les Orthonectida, classe nouvelle d’dnimaux para- 
sites des Echinodermes et des Turbellari^. C. R. Ixxxv. pp. 
812-814. 
These forms are regarded as standing between the DicyemidcB and the 
Gasterotricha [perhaps it is, at present, safer to regard the Dicyemidce 
as Mesozoa^ as distinguished from the Metazoa^ to which group the Gas- 
terotricha appear to belong]. The new form, Rhopalum ophiocomoi^ was 
found in Ophiocnma neglecta, under both elongated and ovoid forms ; 
both were simple planulse, but the body was arranged in metameres, 
which were remarkably differentiated. Another, found in Linens ges- 
serensis, O. F. M., is, in honour of Dr. W. 0. McIntosh, called IntosJiia 
[this must be Macintoshia'] linei ; it has evidently been figured by Kefer- 
stein under the name of Leptoplana iremellaris^ St. Malo. 
D’Arcy Power, Q. J. Micr. Sci.xvii. pp. 132-145, pi. x., gives an account 
of E. van Beneden’s researches on the Dicyemidce, and an account of 
recent researches on these forms is given in M. Micr. J. xvii. p. 250. 
SOLENOGASTRES. 
60. Graff, L. Neomenia und Chcetoderma. Z. wiss. Zool. xxviii. 
pp. 557-570. 
61. Koren, j., & Danielssen, D. C. Beskrivelse over nye arter hen- 
koorende til Slaegten Solenopus. Arch. Math. Naturv. ii. pp. 120-128. 
[Translated Ann. N. H. (5) iii. p. 321, May, 1879.] 
