NO. 1105. PROCEEDINGS OF THE NATIONAL MUSEUM. 161 



BERTIA STUDERI, R. Bianchard, 1891. 

 (Plate IX., figs. 2-3.) 



1891, Bertia studeri, R. BLANCHARD, Me"m. Soc. zool. France, IV, pp. 187-190, figs. 1-4. 

 1894, Taenia studeri (R. BLANCHARD, 1891), BRAUN, Vermes, Bronn's Klassen und Ord- 

 nungen, etc., IV, 36-37, p. 1143. 



Diagnosis. Bertia studeri, E. Bianchard, 1891 : Strobila attains 130 

 mm. in length, 15 mm. in breadth, 2.5 mm. in thickness; contains about 

 400 segments. Head subspherical, 0.65 mm. broad by 0.61 mm. long; 

 suckers oblong, 0.34 to 0.345 mm. long by 0.27 to 0.28 mm. broad, two 

 arranged on dorsal surface, two on ventral surface. Neck very short 

 (0.3mm.); about as broad as head. Segments always much broader 

 than long; maximum breadth 15 mm. at 45 mm. from head, maximum 

 length about 0.35 mm. Genital pores very small, lateral, alternating 

 very regularly. Male organs :? Female organs : Glands'? Uterus in 

 fully developed stage composed of 30-35 polyhedral packages, 0.5 to 

 0.9 mm. by 0.1 to 0.8 mm., arranged in transverse row, occupying entire 

 breadth and thickness of segments. Ova 53 to 60 /*, pyriform body 14 

 to 16 f.i broad, 23 to 30 // long, horns generally straight, oncosphere 10 

 to 12 //. Cortical layer of strobila supplied with numerous calcareous 

 corpuscles 15 to 20 yu by 11 to 17 yu. 



Host. Chimpanzee (Anthropopithecus troglodytes (Linna3us) [Troglo- 

 dytes niger])) by Studer. 



Type. Type and one paratype in Zoological Museum at Berne, Swit- 

 zerland. Fragments in collection of 11. Blauchard. 



BERTIA SATYRI, R. Bianchard, 1891. 



1891, Bertia satyri, R. BLANCHARD, Me~m. Soc. zool., France, IV, pp. 190-192. 

 1894, Tcenia, satyri (R. BLANCIIARD, 1891), BRAUN, Vermes, Bronn's Klassen und 

 Ordnungen, etc., IV, 36-37, p. 1143. 



Diagnosis. Bertia satyri, E. Bianchard, 1891 : Strobila attains 245 

 mm. or more in length by 10 mm. in breadth by 2 mm. in thickness, and 

 contains about 350 segments. Head and neck unknown. Segments 

 always much broader than long, attaining a maximum length of 0.75 

 mm. Genital pores very small, lateral, irregularly alternate. Calcare- 

 ous corpuscles numerous, attaining 30 by 20 yu. Dorsal canal lateral 

 of ventral canal. Cirrus-pouch claviform, large and elongated. Uterus 

 resembles somewhat that of B. studeri. Ovum 35 to 38 /* by 30 to 32 ^ 

 pyriform body 12 to 17 JJL by 19 to 25 ^, oncosphere 13 //. 



Host. Oran-TJtan (Simia satyrus, Linnaeus). 



Type. Leyden Museum. 



From these descriptions it is impossible to come to any satisfactory 

 conclusion as to whether the genera Andrya and Bertia should be kept 

 separate or united. The form of the segments must surely be rejected 

 as a generic character, and the fact that the pores of Bertia show a 

 tendency to appear regularly alternate while those of Andrya show 

 Proc. IN . M. vol. xix 11 



