ZOOLOGY AXD BOTANY, MICROSCOPY, ETC. 577 



Actiniae of the Bay of Naples.* — A. Andres imblishcs the first half 

 of his monograph, in u'hich he limits himself to the bibliography and 

 systematic descriptions of the species ; this is very fully done, and 

 the plates are of exquisite beauty. 



Protozoa. 



Morphology and Anatomy of Ciliated Infusoria.f— E. Maupas 

 commences an important essay with a brief review of the more 

 valuable works that have already appeared ; after which he enters 

 on a description of Colpnda cucullus, the food of which is stated 

 to consist of bacteria, vibrios, micrococci, and small monads. Colpoda 

 steinii is next dealt with, in which four forms are distinguished. 

 These two species are very widely distributed. 



A new genus Cryptochilum is instituted for the Cyclidium nigricans 

 of O. F. Miiller, which, though closely allied to Paramecium, Col- 

 poda, Colpidiiim, and Cyclidium, may, the author thinks, be justly 

 distinguished from any one of them. A new species of this genus is 

 C. elegaiis, which is much larger than C. nigricans ; it was discovered 

 near Algiers. Paramecium griseolum of Perty is removed to this 

 genus ; and C. tortum, found near Algiers, and C. ecJiini, which was 

 found living parasitically in the intestine of Echinus lividus, are 

 described as new species. 



Some parts of the structure of Colpidium colpoda are fully entered 

 upcm; Glaucoma pjyriformis (e) is described in detail, and the 

 structure of the mouth of G. scintillans is discussed. Ophryoglena 

 magna is a new Algerian species which is fully described and com- 

 pared with its allies. 



A new genus Ancisirum is instituted for the Opalina mytili of 

 Quennerstedt, and for A. veneris gallince, a new species found in 

 Venus gallina at Algiers. They lead the life of commensals, and the 

 genus is allied to Pleuronema and Ptychostomum. Quennerstedt failed 

 to notice the mouth, which is, however, really j)resent. 



Nassula oblonga (found in the sea off Eoscoff), Ghilodon duhius which 

 miglit almost be made the typo of a new genus, Holophrya oblonga 

 (sea off Algiers), and Lagynus crassicollis, from a similar locality, are 

 all new species. Loxophyllum duplostriatum (new species) is remark- 

 able for the characters of its striation, which at once distinguishes it 

 from all its allies. Interspersed with and following these descriptions 

 arc notes on some other species, after which the author enters upon a 

 discussion of the organology of the Oxytrichida. Before defining his 

 terminology ho very justly urges that a good comi^arative morphology 

 can only be established by the aid of a very exact terminology, based 

 on as wjmplotc a comparison as possible. In the case of the Infusoria 

 this may seem to bo impossible, but it is because it has not been 

 vigorously aimed at that such differences obtain in the comparative 

 studies of even the best naturalists. To cite some of the terms em- 



♦ ' Fauiia urid Flora dcB Golfca von Neapcl. ix. Dio Actiuien.' 1884, 459 pp. 

 (13 pla.). 



t Arch. Zool. Expfir. ct fjcu., i. (188.'!) jjp. 127 Util ((j pla.). 



