J. MURRAY ON GASTROTRICHA. 233 



37. Lucks, R. Linaugebiet micr.-Wasserbewohner. Jahrb. West- 



preuss. Lehrver.f. Naturk., pp. 20-23 (1905), 1906. 

 List of eight known species in West Prussia. 



38. Ibid. Neues aus d. Mikrofauna Westpreussens. Ber. West- 



preuss. Bot.-Zool. Ver., 31, pp. 141-2, 1909. 



Three additional known species in West Prussia. 



39. Ludwig, K. TJ. d. Ordnung Gastrotrichs. Zeit. far iviss. 



Zool., 26, pp. 219-25, 1875. 



A general work, dealing with systematic position, etc. 

 List of thirteen known species. 

 *40. Marcolongo, I. Primo contributo alio studio dei Gastro- 

 trichi del lago-stagno craterico di Astroni. Monitore Zool. 

 Ital. Firenze, 21, pp. 315-18, 1910. 



He gives no figures, but describes a new family 

 Anacanthodermidae, a new genus linacanthoderraa, and 

 eight new species Chaetonotus laroides, C. hirsutus, C. 

 minimus, C. nodifarca, C. decemsetosus, C. 2)aucisetosus, 

 Dasydytes imucisetosus, Anacanthoderma punctatum. 



I have not seen this paper, but received these particulars 



by favour of Mr. Harring, of Washington. (Vide No. 72.) 



*41. Metchnikoff, E. Wenig-bekannte niedere Thierformen. 



Zeit. fur wiss. Zool, 4, pp. 450-8, PI. 15, 1865. English 



trans, in Journ. Jlicr. Sd. (N.S. 6), pp. 241-52, 1865. 



New genera Chaetura (sp. capr worms), Cephalidium 

 (= Dasydytes) (sp. longisetosum). New species Ichthy- 

 dium oceUatum, C. hystrix, C schultzei. 

 *42. Muller, O. F. Verm. terr. etfluv., pp. 66 and 79, 1773. 



New species Cercaria podura (= Ichthydiam), Trichoda 

 acarus and T. anas (both now = C. larus). 

 *43. Ibid. Prod. Zool. Dan., 1776. 



Trichoda lai'us ( = Chaetonotus). 



44. Ibid. Anim. infus.fluv. et marina, 1786. 



Trichoda larus ( Chaetonotus). 



45. Nitzsch. Infusorienkunde, 1817. 



Enchelys podura ( = Ichthydium). 



46. Norrikov, A. Y. K. sistematikie Gastrotiicha (Russian). 



Triid. Obs. Ahklim. Moskau, 6, 1907, pp. 309-47, PI. 10. 



I have not seen this paper, but Mr. Harring, who kindly 

 furnished the reference, says it is largely a translation of 

 Zelinka's paper (71) and contains little that is new. 

 Journ. Q. M. C., Series II. No. 73. 16 



