1889.] Zoology. 825 
takes the annelida ; Dr. E. Meyer, the terebellina ; Dr. Trautzsch, the 
polynoidae ; Dr. Kiikenthal, the opheliidae ; Dr. Cobb, who describes 
the parasitic nematodes ; Dr. Vosseler, who works out the amphipodsL 
and isopods ; Dr. Giesbrecht, who describes the copepoda, and finally 
Dr. Kiikenthal, who gives notice respecting Hyperoodon rostratus and 
Beluga leucas. A new polynoid is Harmethoe vittata ; and an Ammo- 
trypane, two forms of Ascaris (> 
Phoca barbatd), and a Strongylu: 
number of new amphipods is five. 
Arthropoda. — "The Maturation of the Ovum in the Cape and 
New Zealand species of Peripatus," forms the subject of Miss Lilian 
Sheldon's contribution to the Quar. Jour. Microp. Soc, XXX., pt. I. 
Petrarca bathyactidis is the title given by Mr. H. Fowler to the 
curious crustacean parasite described by him in the Quart. Jour. 
Microp. Soc. XXX., pt. 2. It is a member of that family of crusta- 
cean parasites upon Anthozoa of which the only other species known 
are the Laura gerardm of Lacaze-Duthiers, and the Synagoga mira of 
Norman. The specimens were all found in the mesenteric chambers 
of a single Bathyactis symmetrica from a depth of 2300 fathoms. It 
seems to be an internal commensal rather than a parasite. Mr. Fow- 
ler accepts for the group the title of Ascothoracida, suggested by 
Lacaze-Duthiers, and states that the characters are markedly shared 
between the Cirripedia and the Ostracoda. 
Mr. M. Narayanan, of the Biological Laboratory of Madras, fur- 
nishes figures of the external sexual organs of Scorpio fulvipes, which 
is common at Madras, and shows that the division into two parts of the 
genital operculum is, in this species at least, a sexual character peculiar 
to the male. In this species the chelae are narrower than those of the 
female, but this character is not universal. 
One of the most extensive entomological collections that have been 
made of recent years is that of Herr Fruhstorfer, who has visited Cey- 
lon in the interest of certain German museums, and, with the aid of 
fourteen other collectors, has now at least 25,000 coleoptera, 7000 lepi- 
doptera, 3000 orthoptera, at least as many dragon-flies, a thousand 
arachnids, and a good collection of snakes of all kinds. 
Mollusca.— M. Bouchon Brandely has recently inspected some of 
the oyster-beds of the north of France, and reports much reckless 
fishing. On the river Roma, near St. Malo, the industry is almost 
ruined ; at the Bay of St. Brieac the beds have been destroyed by the 
