36 
TiENlA HOMINIS « Linstow, 1902. 
[Figs. 52 to 53.] 
Specific diagnosis. — Taenia ( Taniarhynchus ) (p. 26): Strobila 70 mm. long; back 
of scolex it is 1.11 mm. broad, posteriorly 1.97 mm. Scolex 2.01 mm. broad by 
1.34 mm. long. Rostellum unarmed, rudimentary, 240 ju broad, 75 p long. Suckers 
with lumena (0.60 mm. deep) running postero-anteriorly, so that they are circular 
on cross section. Genital organs not developed in specimen examined. Back of 
suckers a circular ridge. Possibly strobila grows as large as T. saginata. Dorsal and 
ventral cortical layer as broad as inner layer. Calcareous corpuscles very numerous, 
arranged in concentric layers. No black pigment present in type specimen. Ventral 
canals 16 p lateral of dorsal canals; the ventral canals run in the 2d and 5th sixths of 
lateral diameter, and are connected with transverse canals at distal border of each 
segment; dorsal canals surrounded by radially running muscles. Longitudinal nerve 
closely lateral of ventral canals. 
Cysticercus: Unknown. 
Habitat. — Adult in intestine of man. 
Geographic distribution. — Known only for Aschabad, Asiatic Russia. 
Medical significance. — Unknown. 
Fig. 52. — Head of Tania hovninis; note the circular ridge back of the suckers. Greatly enlarged. 
(After Linstow, 1902, 770, fig. 3.) 
Fig. 53. — Transverse section of same, through the suckers. (After Linstow, 1902, 770, fig. 4.) 
Subgenus TyENIAd 
Subgeneric Diagnosis. — Tania (p. 24): Rostellum distinct, and armed with a 
double crown of hooks of two sizes; segments usually numerous, may be over 500 
« Synonym. — Tania hominis Linstow, 1902 (not T. armata hominis Brera, 1808a; 
not Tania lata hominis Bloch, 1782a; not Tania albopunctata hominis Diesing, 1850a; 
not Tania mediocaneliata hominis Ivuechenmeister, 1852f). 
t> Synonyms. — Tania L innseus, 1758a; Tenia Scopoli, 1777; Ilydatigena Goeze, 1782a; 
Megocephalos Gceze, 1782a; ? Pseudoechinorhynchus Gceze, 1782a; Finna Werner, 1786, 
and Brera, 1809a; Yesicaria Mueller, 1787, and Schrank, 1788; Ilydatula Abildgaard, 
1790a; ? Haruca Gmelin, 1790a; ITydatis Blumenbach, 1797 ; Cysticercus Zeder, 1800a; 
Alyselminthus Zeder, 1800a; dialysis Zeder, 1803a; Cisticercus Rudolphi, 1805; Phys- 
cliiosoma Brera, 1809a; Finna Brera, 1809a; Gceziana Rudolphi, 1810a; Hydatigera 
Lamarck, 1816; Fischiosoma delle Chiaje, 1825a for Physch iosoma ; Trachelocampylus 
Fredault, 1847b; Arhynchotania Diesing, 1850a; Hcdisis Goldberg, 1855a; Acanthotrias 
Weinland, 1858; Cystotania Leuckart, 1863; Neotenia Sodero, 1886; Neotania Braun, 
1894a; Cysticerkus and Cystizerkus of several authors 
