ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
195 
that in Portumnus nasutus the reversal also occurs. Bolin has now 
proved its occurrence in twenty-one species selected from various 
families. He discusses its advantages and disadvantages in connection 
with the parasitic Crustaceans often found in the branchial chamber. 
Malayan Decapoda and Stomatopoda.* * * § — Dr. J. G. de Man com- 
pletes his report on a collection from Malacca, Borneo, Sumatra, and 
the Java Sea. He has dealt witli 185 species, many of them new. 
Some Rare Crustacea. Messrs. T. and A. Scott describe Sunaristes 
paguri Hesse, of which they have obtained several British specimens. 
The notes and drawings show the more important points of difference 
between this parasitic copepod and Canuella , and also the close relation- 
ship between these two and the genus Longipedia Claus. The authors 
have also notes on Remigulus tridens T. and A. Scott, which turns out to 
be synonymous with Synatipliilus luteus Canu and Cuenot ; on Diaptomus 
laciniatus Lilljeborg from Loch Doon, Ayrshire (new to Britain) ; and 
on Lathonura rectirostris Lilljeborg from the same loch (new to Scot- 
land. 
Isopods of the ‘Albatross ’ Expedition.^ — Herr H. J. Hansen reports 
on this collection. There were fifteen species — one terrestrial and well- 
known, fourteen marine and new. Of the marine species, eight are 
free-living, and one is parasitic on fishes ; these nine are easily referred 
to well-established genera. The remaining five are new Bopyrinae (four 
new genera), and are the more interesting since heretofore no Bopyrinee 
have been found on truly deep-sea animals. 
Synidotea.§ — Dr. J. E. Benedict has made a useful revision of 
this genus of Isopods, which was instituted in 1878 by Harger to 
receive Idotea bicuspida Owen and I. nodulosa Kroyer, two species 
which now represent the two sections of the genus. The improved 
diagnosis reads : — Antennae with an articulated flagellum. Epimeral 
sutures not evident above on the first four segments ; on the last three 
the lines of demarcation are more or less distinct. Pleon apparently 
composed of two segments, united above but separated at the sides by 
short incisions. Operculum with a single apical plate. Palpus of 
maxillipeds three-jointed. Thirteen species are described and figured ; 
seven being new. 
Entomostraca of Plon.|] — Mr. D. J. Scourfield gives a list of 36 
species of Cladocera, 10 of Ostracoda, and 18 of Copepoda, collected by 
him in the Grosser Ploner See and neighbouring pieces of water in July 
1896. The list includes several rare and interesting species, e.g. 
CeriodapJmia setosa Matile, Alonopsis f latissima Kurz, Candona stagnalis 
Sars, Heterocope appendiculata Sars, Canthocamptus vejdovshji Mrazek, 
&c., and shows that the Entomostracan fauna of the district immediately 
surrounding the Plon Fresh-water Biological Station is exceptionally 
rich. 
* Zool. Jahrb. (Abth. Syst.), x. (1898) pp. 677-708 (11 pis.). 
f Ann. Nat. Hist., xx. (1897) pp. 489-94 (2 pis.). 
% Bull. Mus. Comp. Zool. Harvard, xxxi. (1897) pp. 95-129 (6 pis. and a map). 
§ Proc. Acad. Nat. Sci. Philad., 1897, pp. 889-404 (13 figs.). 
|| Forschungsberichte Biol. Station Plon, v. (1897) p. 180 and table. 
