Sphalloplana mohri Hyman , 1939c 



Synonyms: Sphalloplana kutsaheri Mitchell, 1968; S. sloani Mitchell, 1968; 

 S. zesohi Mitchell, 1968; S. reddelli Mitchell, 1968. 



72 



ode gp 



Fig. 71 after Carpenter (1970), modified, 

 Fig. 72 after Mitchell (1968), modified. 



Mature animals 20-35 mm long and 3-5 mm wide. Anterior end truncate, 

 with laterally protruding auricles. The glandular and muscular adhesive 

 organ, deeply invaginated when at rest, may be extended as a conical 

 projection through its opening at the center of the frontal margin. 

 Behind the auricles the head narrows to a neck, then the body widens 

 again. Eyeless and without pigment, white. Polypharyngeal, with up to 

 about 50 pharynges. Testes relatively few, situated between the in- 

 testinal branches, extending back to the level of the anterior pharynges. 

 Penis consists of a bulb of moderate size and a larger cylindrical or 

 conical papilla, both with feeble musculature and easily distorted in 

 preservation. The vasa deferentia enter the bulb anterolateral ly and 

 unite in the penis papilla. The common vas deferens may show a widened 

 section, the equivalent of a seminal vesicle, and continue as ejaculatory 

 duct to the tip of the papilla. The common ovovitelline ducts open into 

 the posterior part of the male atrium (there is hardly any common atrial 

 cavity developed) . Bursal duct with a narrower anterior section and a 

 wider, thick-walled, glandular and muscular terminal portion (vagina). 

 Caves in Texas. Principal literature: Hyman (1939c), Mitchell (1968). 



55 



