172 STRONGYLOIDEA 



7. Uncinaria Frolich, 1789. 



Syn. Doc/imitts Dujardin, 1845; Doc/imoifZes Cameron, 1924. 



Month guarded by ventral cutting-plates. Buccal capsule 

 large, infundibular. Two subvcntral teeth present towards 

 its base. Dorsal cone within the wall of the capsule, its tip 

 not projecting into the lumen. Antero -lateral ray of bursa 

 rather divergent from the remaining lateral rays. Externo- 

 dorsal rays arise almost at the root of the median dorsal stem. 

 Dorsal ray cleft for almost half its length ; its terminations 

 tridigitate. Spicules slender, not barbed. Vulva at about 

 the posterior third of the body. 



Hab. Intestine of Mammals. 



Genotype : U. [Ascaris} criniformis (Goeze, 1782). 



Goeze, 1782, Naturg. d. Eingeweidewiirmer, Blankenburg, 

 106 ; Frolich, 1789, Naturforscker, Halle, xxiv, 136 ; Schneider, 

 1866, Monograplne, der Nematoden, Berlin, 139 ; Looss, 1905, 

 Bee. Egypt. School Trop. Med., Cairo, iii, 28; Hall, 1916, Proc. 

 U.S. Nat. 31 us., 1, 108. 



Cameron (1924, Journ. HelminthoL, ii, 46) has proposed 

 the generic name Dochmoides to replace Uncinaria, on the 

 ground that the type of the latter genus, U. vuljns (designated 

 by Stiles & Hassall, 1899, Rej). Fur Seal Invest., Washington, 

 Pt. 3, 164), is a sj^ecies inquirenda. Looss (1902, Centralbl. 

 f. Bald., (I), xxxi, 423) has pointed out that Frolich indicated 

 plainly that he regarded A. criniformis Goeze, 1782, as the 

 more important species of his genus Uncinaria, and he con- 

 siders it, therefore, to be the type. Since Stiles (1902) has 

 suggested that U . vulpis is in all probability a synonym of 

 U . criniformis, it seems reasonable to follow Looss in regarding 

 U. criniformis as the gcnotjrpe. U. criniformis may be 

 identified by comparison of specimens collected from the 

 type host with the description and figure of Schneider (1866), 

 who re-examined the orio-inal material. 



'o' 



8. Tetragomphius Baylis & Daubney, 1923. 



Mouth guarded by poorly-developed ventral cutting-plates. 

 Buccal capsule cup-shaped. At its base a pair of subdorsal 

 and a pair of subventral lancets, the former bicuspid and the 

 latter usually tricuspid. Dorsal cone represented by a blunt 

 tubercle carrying the dorsal gutter. Bursa short and stunted. 

 Dorsal ray cleft almost to point of origin of externo- dorsal 

 rays, its terminations bidigitate. Spicules extremely long, 

 filiform, not barbed. Vulva in posterior half of body. 



Hab. Stomach of Raccoon (one species known). 

 Genotype : T. procyonis Baylis «fe Daubney, 1923. 



