QUARTERLY CHRONICLE OF MICROSCOPICAL 
SCIENCE. 
GERMANY.—Kolliker’s und Siebold’s Zeitschrift. Third 
Part, 1866.—‘‘ New Infusoria in a Sea Aquarium,” by Dr. 
Ferdinand Cohn, of Breslau. After some interesting remarks 
’ of a general character on the structure of Infusoria, Dr. Cohn 
proceeds to describe at some length the following species of 
Infusoria observed by him :—1. Trrachelocerca Phenicopterus, 
n.sp. 2. Lacrymaria Lagenula, Clap. and Lachm. Meta- 
cystis truncata, nov. gen. et spec. Nassula microstoma, n. sp. 
Placus striatus, noy. gen. et spec. Amphileptus Gutta, n. sp. 
Lembus velifer, nov. gen. et spec. Anophrys sarcophaga, nov. 
gen. et spec. Colpoda pigerrima, n. sp. Uronema marinum, 
Du. Pleuronema Citrullus, n. sp. Helicastoma oblongum, 
nov. gen. et spec. Loxophyllum rostratum, n. sp. Actino- 
tricha saltans, nov. gen. et spec. Stichocheta pediculiformis, 
n. sp. Oxytricha scutellum, n. sp. Oxytricha flava, n. sp.; 
var. carnea. Oxytricha rubra, Ehr. Trichodina Auerbachii, 
n. sp. Acarella Siro, noy. gen. et spec. Cothurnia Pupa, 
Eichw. Glyphidium marinum, Fresenius. These numerous 
genera and species are figured with great clearness in two 
finely executed large folding plates. ‘The paper is an ad- 
mirable example of what may be done by a good microscopist 
simply working at what lies under his hand—the inhabitants 
of an aquarium. Dr. Cohn’s aquarium was set up, he states, 
for the purpose of studying marine Algz, and these Infusoria 
were accidentally observed. 
** On Hemioniscus, a New Genus of Parasitic Isopods,”’ by 
Dr. R. Buchholz.—This very interesting crustacean was ob- 
served at Christinasand, in the bottom of a vessel in which a 
number of Balani (B. ovularis, Lamk.) had been placed. 
They presented at first the appearance of some Annuloid 
animal; but their true nature was soon revealed by the use 
of the microscope, and their history afterwards traced. Dr. 
VOL. VII.—NEW SER. D 
