GASTRICOLOUS OESTRID^E 599 



GASTRICOLOUS OESTRID.E. 



The eggs are deposited on the hairs of Eqnidcu, and the larvae 

 escaping from them are licked up and swallowed. They pass their 

 larval stage, according to the species, in various parts of the 

 intestine and stomach, and when mature, pass out per ainun in 

 order to undergo the pupal stage. 



Genus. Gastrophilus, Leach. 



One of the most frequent species is Gastrophilus equi, Fabr. ; the eggs are laid 

 on the hairs ; the larva? live some ten months in the stomach, living attached 

 to the inner surface. The eggs of G. hcemorrhoidalis, L., are deposited on 

 the lips or the long hairs on them. The larvae adhere to the cardiac end of 

 the stomach, to the stomach itself, and finally to the terminal portion of the 

 intestine. Here, however, and elsewhere in the intestine, the larvae of G. pecorum, 

 Fabr., are also met with, whilst the larvae of G. nasalis (so called because the 

 eggs are deposited in the nasal orifices) almost exclusively inhabit the anterior 

 section of the duodenum. 



Cholodkowsky attributes the " wormlet " observed by Samson and Sokolew 

 (Wratsch, 1895, Nos. 48 and 57) and others (ibid., 1896-98) to Gastrophilus larvae. 

 It burrows into the epidermis of man by minute passages. This observation 

 should, however, be verified. The phenomenon is designated as skin- mole, larva 

 migrans, and creeping eruption. 



OTHER PAPERS ON DIPTEROUS LARVAE, ETC., IN MAN. 



(1) " Ein Fall von lebenden Fliegenlarven im menschlichen Magen," Deutsch med. 

 Wochenschr., Leipz. and Berl., xxiv (12), pp. 193-194. Bachmann, and review of same, 

 " Living Fly Larvae in the Human Stomach," Philadelphia Med. [own,, 1898, i, 18, p. 773. 



(2) " Sudi una larva di dittero parassita della congiuntiva umana," Ann. di offal., Paira, 

 1895, xxiv (4), pp. 329-336, I fig., E. Baquis. 



(3) " Sur quelques dipteres suceurs de sang, observe a Terre-Neuve," Arch, de Far., 

 Paiis, 1900, iii (i), pp. 202-204, E. Barret. 



(4) "An Account of the Larvae of two Species of Insects discharged from the Human 

 Body," Edin. Med. and Surg. Journ., January I, 1811, vii (25), pp. 41-48, I pi., figs. I to 8, 

 T. Bateman. 



(5) " Un cas de myiase par la Sarcophaga magnifica en Roumanie," Bull. Soc. Zool- 

 de France, Par., 1891, xvi (2), pp. 25-26, R. Blanchard. 



(6) " Sur les oestrides americains dont la larve vit dans la peau de 1'homme," Ann. Soc. 

 ent. de France, 1892, v, pp. 109-154, figs. 1:12, R. Blanchard. 



(7) " Note additionnelle sur les oestrides americans dont la larve vit dans la peau de 

 rhomme," Bull. Soc. ent. de France, Paris 1894, xiv, pp. 209-211, R. Blanchard. 



(8) " Note sur des larves de Dermatobia provenant de Bresil," Bull. Soc. ent. de France, 

 Paris, 1893 (2), pp. 24-27, R. Blanchard. 



(9) " Larven der Wohlfahrtfliege (Sarcophila ivolfahrtii) im Zahnfleische eines Menchen," 

 Wratsch., St. Petersburg, 1888, 5-6, E. K. Brandt. 



(10) " Ueber den sogenannten Oestrus hominis und die oftmals besichteten Verirrungen von 

 Oestriden der Saugetheiere zum Menchen," Verhandl. d. k. zool.-bol. Gesellsch., 1860, x 

 Abhandl., pp. 57-72, Brauer. 



(11) "Ueber die Larven der Gattung Cuterebra, Clk.," Verhandl. d. k. zool.-bot. 

 Gesellsch., 1860, x Abliand., pp. 777-786, Brauer. 



(12) " Des desordres produits chez 1'homme par les larves de la Lucilia hominivorax" 

 These, Paris, 1864, 43 pp., V. Audouit. 



(13) " Note on the 'Flesh Worm,'" Med. Press and Circ., London, April 12, 1882, 

 Ixxxii (N.S. xxxiii), p. 314, P. S. Abraham. 



