188 ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 



Movements of Convoluta.* — H. Pieron has been led by his observa- 

 tions to conclude that the rising of Convoluta to the surface of the sand, 

 and its descent again, and the time it remains up when it comes up, 

 depend on the environmental influences of light, moisture, pressure, and 

 the shocks of the waves. There is no need to assume an hereditary 

 rhythm. 



Para vortex scrobiculariae WahLf — Paul Hallez gives a description 

 of this Turbellarian which lives in the stomach, intestine and pyloric 

 caecum of Scrobicularia piperata, and is specifically quite distinct from 

 P. cardii, which Hallez recently reported from the cockle. 



Trematode in Hibernating Gland of Hedgehog.} — M. Athias 

 describes what seems to be a species of Distommn, which he found in 

 making sections of the hibernating gland of the hedgehog. He has 

 not been able to determine the species. 



Structure of Sterrhurus fusiformis Luhe.§ — K. Miestinger gives 

 an account of this Trematode which he obtained, along with Lecitho- 

 chirmm rufoviride (Rud.) from the duodenum of a conger. He describes 

 the genital system, the food-canal, the excretory organs, the nervous 

 system, the parenchyma, and the cuticle. 



Hymenolepis farciminalis.[| — T. B. Rosseter describes this tape- 

 worm, hitherto referred to the genus Taenia. It has been found in the 

 alimentary tract of the crow, starling, jay, and jackdaw. The ripe 

 joints have a somewhat sausage-like shape, as the specific name 

 indicates. The elongated filiform medianly constricted seminal vesicle 

 is characteristic, and so is the long, slender vaginal canal. 



Larval Ligula in Cranial Cavity of Tench.H — Maurice Neveu- 

 Lemaire reports the occurrence of a larval stage of Ligula simplicissima 

 in an unusual place, the cranial cavity of a tench. 



Incertse Sedis. 



Review of Actinotrocha.** — Franz Poche maintains that the name 

 Phoronis must yield to Actinotrocha. Dura lex, sed lex. He proposes 

 a class Actinotrochoidea, an order Actinotrochidea, a family Actinotro- 

 chidffi, all for the genus Actinotrocha J. Muller, otherwise known as 

 Phoronis. He then takes a survey of the recorded forms, and finds 

 that there are thirty-one species on the list. Of these, however, twenty- 

 one are known only as larvse. 



Remarkable Epithelium in Bryozoa.ft — F. Henneguy calls attention 

 to the unique epithelium found in the oesophageal region of Bryozoa, 

 e.g. in Alcyonidium hirsutum and Bngula alveolata. The oesophageal 



* C.R. Soc. Biol. Paris, lxv. (1908) pp. 673-5. 



t Arch Zool. Exper., ix. (1908) Notes et Revue, No. 4, pp. lxxii.-v. 



% Arch. R. Inst. Bacteriol. Carnara Pestana, ii. (1908) pp. 133-45 (2 pis., 7 figs.). 



§ Arbeit. Zool. Inst. Univ. Wien, xvii. (1909) pp. 359-84 (2 pis.). 



|| Journ. Quekett Micr. Club, Nov., 1908, pp. 295-310 (1 pi.). 



f C.R. Soc. Biol. Paris, lxvi. (1909) pp. 88-9. 



** Arch, f . Naturges, lxxiv. (1908) pp. 372-88. 



ft Cornptes Rendus, cxlviii. (1909) pp. 134-8 (4 figs.). 



