398 FCETAL DYSTOKIA. 



13. ScHiSTOSOMirs. — Division of the head and trunk ; 3 species : S. 

 reflexus (division of the body and inversion of the spinal column), S. 

 contortus (division of the body and torsion of the vertebral column), S. 

 microchiriis (division of the body and anterior limbs shortened). 



14. Schistomelus. — Cleft limbs j 2 species : S. fissimafms (division 

 of the anterior limbs), S. fissimgulus (division of the phalanges). 



ORDER IV. — Simple Monstrosities through Absence of the 

 Natural IDivision of Parts : — 



15. Atretocephalus. — Absence of openings in the head ; i species : 

 A. ast077ius (mouth absent). 



16. Atretocormus. — Absence of the natural apertures in the body ; 

 2 species : A. aproctus (anus absent), A. atmrethra (urethra absent). 



17. AscHiSTODACTYLUS. — Phalanges undivided ; i species: A. solidun- 

 gulus (absence of division of the phalanges and claws in those animals 

 which usually have them divided). 



ORDER V. — Simple Monstrosities through Fusion or Coali- 

 tion OF Organs: — 



18. Cyclops Monophthalmus. — One eye in the middle of the face, 

 and a proboscis in addition ; 3 species : C. megalostomiis (large mouth), of 

 which there are two varieties : a^ C. megalostomus rhynchcBUus (large mouth 

 and proboscis), b, C. megalostomus archynchiis (large mouth, but no probo- 

 scis) j C. prostomus (irregular mouth), in which are two varieties : a, C. 

 prostomus arhynchus (irregular mouth and no nose) ; b^ C. prostoimis 

 rhynchcenus (irregular mouth and nose) ; C. astomus (without mouth), 

 with two varieties : a, C. astomus arhynchus (mouth and nose absent) ; b, 

 C. astomus rhynchcznus (proboscis present, but mouth absent). 



ORDER VI. — Simple Monstrosities through Abnormal Position 

 AND Form of Parts : — 



19. Campylorrhinus. — Curvature of the nose ; i species : C. lateralis 

 (lateral curvature of the nose). 



20. Camylorrhacchis. — Curvature of the vertebral column ; 2 species : 

 C. scoliosa (lateral curvature of the spine), C. contorta (torsion of the 

 spine). 



ORDER VII. — Simple Monstrosities through Excess in Forma- 

 tion : — 



21. Megalocephalus. — Head abnormally large ; 2 species : M. hydren- 

 cephalus (with hydrocephalus), M. polycerus (head with large horns). 



22. Diphallus. — Double penis ; i species : D. imperfectus (double 

 penis, incomplete). 



23. Megalomelus. — Limbs with supernumerary parts ; i species : M. 

 perissodactylus (with supernumerary digits). 



ORDER VIIL — Hermaphrodites: — 



24. Hermaphroditus. — Double sex, with predominance of organs be- 

 longing to one sex ; 2 species : H. lateralis (genital organs to one side), 

 in which there are two varieties : «, H. lateralis masculinus (with predom- 

 inance of the male organs) ; ^, H. lateralis femininus (with predominance 



