ZOOGENY. 407 



toes, no feet. The five thoracic feet of the crab corre- 

 spond to our fingers ; its five abdominal feet to our toes. 



2376. There are three limbs in accordance with the 

 three totalities of the body, truncal, sexual, and cephalic 

 members, or arms, feet, and jaws. 



2377. The members of the body or trunk belong to 

 the thorax, because it is the respiratory system. The 

 abdomen has no members ; what have been so-called, are 

 in their signification sexual limbs. 



2378. Had the animal no sex, it would have no pos- 

 terior limbs. 



2379. As the three lower cervical and the two upper 

 dorsal vertebrae belong to the arms, so also they appear 

 to commence with five ribs, but then to become arrested, 

 and again emerge to perfection in the digits. 



2380. The shoulder appears to consist of five ribs, but 

 this does not as yet admit of being clearly pointed out. 

 Meanwhile, it is certain that the scapula, acromion, and 

 coracoid are particular bones, to which may be added the 

 clavicle. 



2381. The middle finger is the elongated radius, and 

 is therefore the longest or radial digit. It is that which is 

 persistent, if only one finger has been left, as in the 

 horse. The ring-finger is the ulnar finger. Tt is that 

 which, along with the former, appears in the bi-ungulate 

 animals ; the spurious or dew-claws are the auricular and 

 index-finger ; the thumb is the last ramification, is there- 

 fore always arrested, and frequently present only as a 

 wart-like excrescence or papilla. 



2382. All animals, which have true digits, are fur- 

 nished with five of them, more or less completely developed. 

 If what has been called the metacarpal bone of the thumb 

 be numbered, which it must, as a digital articulation or 

 phalanx, every finger has thus one carpal bone, and each 

 bone of the fore arm also one. 



2383. The sexual members or feet correspond in all 

 their pieces to the arms : the pelvis is the shoulder 

 repeated ; and certainly, the iliac bone is equivalent to 

 the scapula, the ischium to the coracoid process, the 



