j. murray on gastrotricha. 229 



Bibliography. 



An asterisk * indicates works in which new species are described. 



The works of any importance number scarcely more than a 

 dozen. They are Ehrenberg, 1838 (19); Gosse 1851 (23), and 

 1864 (24); Metcbnikoff 1865 (41); Stokes 1887 (57); Daday 

 1882 (11), 1901 (13), 1905 (14), 1910 (15); Zelinka 1889 (71); 

 Giard 1904 (22); Yoigt 1904 (68); Griinspan 1909 (26); Collin 

 1912 (9). 



With these works the student will have everything he requires, 

 except a few descriptions of doubtful new species. 



Ehrenberg, 1838, summarises the work of the pioneers, and 

 originates a classification. Fraulein Griinspan, 1909, gives the 

 fullest systematic account of the group. Zelinka, 1889, is far and 

 away the best work on the subject, being a painstaking and 

 minute study ; but much has been added to our knowledge since his 

 memoir appeared. Collin, 1912, is simply a compilation, but a 

 useful one. The others noted above are the principal systematic 

 works, containing descriptions of many species. 



1. Archer, W. In Quart. Joum. Micr. ScL, 14, p. 106, 1874. 



Exhibited at Dubl. Micr. Club, C. maximus, C. gracilis, 

 and D. antenniyer ; all found in Ireland. Note that the 

 last species can elevate and depress its antennae. 



2. Barrois, T. Comptes rendus, July 1887. Trans, in Ann. 



Mag. Nat. Hist., xx., p. 365, 1877. 



A segmental worm, having the appearance of Ichthy- 

 dium, but differing much in structure. Probably related 

 to Hemidasys, Turbanella, Zelinkia, Philocyrtis, which are 

 not Gastrotricha. 



3. Bory de St. Vincent. Encycl. method., Paris, 1824. 



Furcocerca podura ( = Ichthydium) ; Zeucophrya larus 

 ( = Chaetonotus). 



4. Ibid. Essai des micr., 1826. 



Diceratella larus ( = Chaeto?iotus). 



5. Bryce, D. In letter to Fraulein Griinspan (vide 26, p. 228). 



Records C. zelinkai for England and Scotland. 



6. Butschli, O. Freilebende Nematoden u. d. Gattung Chae- 



tonotus. Zeit. fur wiss. Zool., 26, pp. 385, 390, etc., 1876. 

 Classification and Anatomy. Good structural figures of 

 C. maximus and C. larus. 



