ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 405 



Elise Deiner * gives an account of a giant tapeworm, Anoplocephala 

 latissima (nom. nov.), from the rhinoceros. It has been previously called 

 Tsenia gigantea, T. magna, and by other names. A description is given 

 of the head, the gonads, the excretory system, the nervous system, and 

 so on. 



Internal Parasites and Diseased Conditions in Fishes.f — Jas. 

 Johnstone gives an account of the minute structure of a very interesting 

 larval Cestode, Ccenomorphm Hnguatula (van Beneden), from the coal- 

 fish. It is probably a permanent Tetrarhynchid larva which has failed 

 to find its definite adult host. He also deals with Tetrarityiichus henedeni 

 (Crety) from the tope, GgrocotgU urna Grube and Wagner from Cliimaera, 

 and Gyro dactyl us elegans on the fins of a small plaice. He goes on to 

 describe sarcomata and other diseased conditions of various fishes. 



Trematode Larvae on Whiting.| — F. W. Gamble and G. H. Drew 

 report on a whiting with black specks scattered over its pigmented areas 

 and on the conjunctiva. The spots were more or less evenly distributed, 

 and averaged 0'5-0"l mm. in diameter. Around each black point was 

 a clear unpigmented area. Each black spot contained the cyst of a 

 larval Holostomum, probably of H. cuticoJa v. Nordmann. The influence 

 of the parasite had drawn towards tlie cyst all the neighbouring chromato- 

 phores, thus explaining the dense accumulation of pigment in each spot 

 and the area of pallor surrounding it. 



Remarkable New Trematode. § — P. de Beauchamp describes a 

 minute Gyrodactylid found on the gills of Loligo media. It is micro- 

 scopic in size, and has a remarkable adhesive expansion like an umbrella 

 turned inside out, and with strong hooks at the ends of the ribs. Like 

 other Gyrodactylids it is viviparous, and shows an encapsulement of one 

 generation inside another. Three successive individuals were seen within 

 the parent. It seems to be the only adult Trematode known to occur 

 on cuttlefishes, for SolenocotyJe chiajei Diesing, reported from Loligo 

 vulgaris, seems to have been based on a misinterpretation. 



Monograph on Anchylostomum duodenaie.|] — A. Looss has given 

 a very thorough account of the structure and development of this 

 important " hook-worm," whose correct name, he says, is Agchylosfoma 

 duodenale Dubini. He deals in great detail with the eggs, their develop- 

 ment, the larvse, the conditions of their life, the dermal and oval 

 infection, the migration of the larvse in man, and so on. 



Planarians from Bromelias.f — P. de Beauchamp describes Geoplana 

 picadoi sp. n. and Rhynchodemus hromelicola sp. n., two Planarians from 

 an interesting situation among the peripheral detritus and leaves of 

 epiphytic Bromeliacete in Costa Rica. 



* Arbeit. Zool. Inst. Univ. Wien. xis. (1911) pp. 347-72 (2 pis. and 3 figs.), 

 t Rep. Lancashire Sea-fisheries Laboratory, xx. (1912) pp. 33-74 (5 pis.). 

 X Journ. l\Iarine Biol. Assoc, ix. (1911) p. 243. 

 § Bull. Soc. Zool. France, xxxvii. (1912) pp. 96-9 (1 fig.). 

 II Records School of Medicine, Cairo, iv. (1911) pp. 163-613 (9 pis.). 

 \ Arch. Zool. Exper., x. (1912) Notes et Revue, No. 1, pp. i-x (3 figs.). 



