1922.] 



H. A. Baylis and R. Daubney : Parasitic Nematodes. 



321 



Fig. 56. 



leptoplili. 

 view. 



■Acuaria, (Echinuria) 

 Left spicule ; lateral 



cation being September. In December of the same year Railliet, Henry and Sisoff published a note on 



the relationships of the members of the genus Acuaria, Bremser, 1811, and erected a new sub-family 



Acuariinae containing the genera Acuaria (type), Bremser, 1811, 



Cosmocephalus, Mol., 1858, Histiocephalus, Dies., 1851. and Strep- 



tocara, Raill.. Hen. and Sis., 1912. The members of the genus 



Acuaria were separated as far as possible into five sub-genera, viz., 



Acuaria^ Cheilospirura, Diesing, 1860, Dispharynx. Raill., Hen. and 



Sis., 1912, Synhimantus, Raill., Hen. and Sis., 1912, and Hamannia, 



Raill. Hen. and Sis., 1912. 



The sub-genus Hamannia is recognised by Seurat (1919) as a 

 sj'nonyru of Echinuria, Soloviev, 1912. While he retains full generic 

 rank for the latter, for his new genus of 1918, Chevreuxia, and for 

 Rusguniella, a genus erected in the same paper, he assigns species 

 to the following sub-genera of Acuaria : Acuaria, Dispharynx and 

 SynhinwAitus . 



The emended diagnosis of the genus Acuaria, Bremser, 1811, 

 given by Railliet, Henry and Sisoff, runs as follows : Acuariinae 

 without vesicular swelling at the anterior end, but bearing four 

 cutaneous cordons in the form of gutters or bands salient from 

 or countersunk in the cuticle, these cordons extending sometimes 



directly backwards, more often returning forwards or even united two by two across the lateral surfaces. 

 Parasites of the oesophagus, ventriculus, or gizzard. Type, Acuaria anthuris (Rud., 1819). 



Accepting this definition, then, we can see no reason why Echinuria,, Soloviev, 1912, Rusguniella, 

 Seurat, 1919, or Seuratia, Skrjabin, 1916, should be given full generic rank. 



The suggested arrangement, then, is as follows : Acuariinae, Raill., Hen. and Sis., 1912 : 

 Gienotype, Acuaria, Bremser, 1811. Other genera: Cosmocephalus, Mol., 1858; H istiocephalus, Dies.. 

 1851 ; Streptocara, Raill , Hen. and Sis., 1912; Chevreuxia, Seurat, 1918. 



Genus Acuaria, Bremser, 1811. Sub-genera : Acuaria, Bremser, 1811, emend. Raill., Hen. and Sis., 

 1912; Chcilospirura, Dies., 1860, emend. Raill., Hen. and Sis., 1912; Dispharynx, Raill., Hen. and Sis., 

 1912; Synhimantus, Raill., Hen. and Sis., 1912; Echinuria, Soloviev, 1912 ; Rusguniella, Seurat, 1919; 

 Seuratia, Skrjabin, 1916. 



Sub-genus Echinuria, Soloviev, 1912 (Synonym Hamannia, Raill., Hen. and Sis., 1912). Diagnosis 

 after Raill. Hen., and Sis. (1912) : — Acuaria with cuticular cordons non-recurrent but anastomosed in 

 pairs across the lateral lines. Body sometimes spiny. Males with spicules unequal and unlike. Four 

 or five pairs of postanal papillae. 



Habitat : ventriculus or gizzard. 



Type, Acuaria {Echinuria) jugadornata, Soloviev, 1912. 



Other species: A. uncinata (Rud., 1819): A. contorta (Molin, 1858); A. longeornata (Mol., 1860); 

 A. calcarata (Mol., 1860); A. spinifera (Schneider, 1866); A. squamata (v. Linst., 1883) ; A. phoeni- 

 copteri (Seurat, 1916), A. lepioptili, Gedoelst, 1916. 



Subfamily PHYSALOPTERINÂE, Stossiçh, 1898 (fide Stiles and Hassall). 



Genus Physaloptera, Rud., 1819. 



Physaloptera alata, Rud., 1819. 



One immature female specimen was collected from Montagu's harrier (Circus 

 einer aceus). 



