2 Verm. 
VERMES. 
ftrings unknown. They are attached to one pole of the ovum and aro 
compared to the similarly placed cell-mass in ovum of Boneliia. 
[Andrews, E. A.] (4) Report upon the Annelida Polychceta of Beaufort, 
North Carolina. P. U. S. Nat. Mus. xiv, pp. 277-302, pis. xii-xviii. 
8 new species. 
. (5) The Distribution of Magelona. Johns Hopk. Univ. Circ. x, 
No. 88, p. 96. 
Magelona papillicornis has been recorded from coasts of Brazil, Nor- 
mandy, Britain ; and author has found young pelagic individuals at 
Beaufort, N.C., and the adult at Woods Holl, Mass. Author thiuks that 
the wide distribution of the adult Magelona , living, as it does, buried in 
the sand, is to be explained by the long duration of a pelagic larval stage 
capable of transport by ocean currents. 
. (G) A Commensal Annelid. Am. Nat. xxv, pp. 25-35, pis. i & ii. 
Polydora commensalis, n. sp., bores a tunnel for itself in the columella 
of the shell of the Gastropod llyannassa obsoleta , which is also used by 
the hermit crab, Eupagurus longicarpus. 
Apathy, S. (1) Pseudobranchellion margoi (nova Familia Ilirudinearum). 
Orvos-termesz. iilrtesito. 1890, pp. 1 10-113 in Czech, pp. 122-127 in 
German. 
The new family is called the C/ielyobdellidce } and comes between the 
Ichthyobdellidce and Clepsinidce, in the group of the Rhynchobdellidai. The 
whole material obtained by author (several hundred specimens) was 
taken from one individual of Thalassochelys corticata in the Bay of 
Naples. 
. (2) Keimstreifen und Mesoblaststreifen bei Uirudineen. Zool. 
Anz. xiv, pp. 388-393. Correction on p. 436. 
Author maintains his view, in opposition to Bergh, that the germinal 
bands — that is to say, the three cell-rows on either side of the middle line 
of the embryo — are all employed in the formation of the nervous system. 
. (3) Ueber die “ Schaumstruktur ** hauptsachlich bei Muskel- und 
Nervenfasern. Biol. Centralbl. xi, No. 3, pp. 78-87, Nachtrag No. 4, 
pp. 127 & 128. 
Observations based on structure of muscular and nervous elements of 
Pontobdella muricata. 
Apstein, C. (1) Vanadis fasciata, eine neue Alciopkle. Zool. Jahrb. 
Abth. f. Syst., &c., Bd. v, pp. 543-545, Taf. xxxviii. 
. (2) Die Alciopiden des naturhistorischen Museums in Hamburg. 
JB. Hamb. viii, 1890, 19 pp., 1 pi. 
1 new genus and 3 new species. 
Bakrois, T. Sur la prdsenco du Lumbricus ( Photodrilus ) phosphoreus 
Duges a Groffliers (Pas-de-Calais). Rev. Biol, iii, No. 3, pp. 
1 17*— 1 1 9. 
