16 ASCAROIDEA 



prominent setiform papillae. Buccal capsule divided into an 

 anterior and a posterior chamber, the latter occupied by three 

 tricuspid teeth. Tail of male obliquely truncate, with broad 

 caudal alae. Caudal papillae pedunculate, ten pairs. 

 Spicules two, equal. An accessory piece present. No pre- 

 anal sucker, but a vesicular swelling present in front of cloaca. 

 Vulva immediately in front of anus, preceded by a sudden 

 constriction of the body. Uterine branches parallel. Eggs 

 containing embryos when laid. 



Hab. Alimentary canal of an insectivorous Mammal (one 

 species known). 



Genotype : M. [AlaujMsiella] weissi (Seurat, 1913). 



Seurat, 1913, Bull. Soc. Hist. Nat. Afrique Nord, Alger, iv, 

 127 ; 1913, Com/pt. rend. Soc. Biol., Paris, Ixxv, 326. 



Seurat (1917, Compt. rend. Soc. Biol., Paris, Ixxx, 350) 

 states that there are two indistinct lateral lips, each bearing 

 laterally a j)air of papillae and anteriorly a papilliform 

 projection. 



Fam. 3. KATHLANIIDAE Travassos, 1918, emend. 



Parasitic forms. Meromyarian. Three well-developed lips, 

 entire or subdivided. Oesophagus preceded either by a 

 chitinoid buccal capsule or by a muscular pharynx with a 

 cuticular lining, unarmed or containing tooth-like structiu^es. 

 Oesophagus with a prebulbar swelling and a large posterior 

 muscular bulb, separated from the former by a rather narrow 

 neck, the two swellings and the neck together giving the 

 appearance of a single dumbbell-shaped or flask-shaped bulb. 

 Tail of male without alae. The ventral muscles in the preanal 

 region of the male frequently aggregated to form one or more 

 fusiform sucker-like organs without a chitinoid border. 

 Reproductive organs moderately highly-developed. Spicules 

 two, equal or subequal, usually falciform and broadly alate. 

 An accessory piece usually present. Vulva at about the middle 

 of the body or somewhat behind it. Uterine branches opposed. 

 Oviparous or viviparous. 



According to Travassos, the musculature of Cruzia is " in- 

 completely polymyarian." 



1. Kathlania Lane, 1914. 



Syn. Pseudoheterakis Travassos, 1917 ; Oxysoma Schneider, 

 1866, e. p. 



Head separated from body by a slight constriction. Lateral 

 alae present. Each lip subdivided into a large main lobe and 

 four smaller accessory lobes, two on each side of the main 

 lobe. In the mid-ventral position there is an additional 



