GLOSSARY. QI 
Digit (L. digitus, a finger or toe).—A finger or toe. 
Diphycereal (Gr. aiphues, mixed ; kerkos, a tail).— 
Applied to the tails of fishes when the caudal 
fin-rays are divided into two equal or nearly 
equal parts. 
Diploe (Gr. diplods, double)—The spongy texture in 
tabular bones. 
Dorsum sellz.—Applied to the posterior boundary of 
the sella turcica. 
Ectopterygoid (Gr. ektos, without; Afexyr, a wing ; 
ezdos, shape).—A bone of the skull in some 
Vertebrata. 
Endoskeleton (Gr. evzdon, within)—The bony and 
cartilaginous portion of the body covered by 
muscles and integuments. 
Ensiform process (L. ezszs, a sword ; forma, form).— 
Applied to a process of the sternum, also 
termed metasternum and xiphisternum. 
Entopterygoid (Gr. exfos, within ; ptevyx, a wing ; 
eidos, shape).—A bone of the skull in certain 
fishes (Teleostet). 
Epicondyle (Gr. efz, upon ; £ondulos,a knuckle).—The 
most prominent portion of the internal con- 
dyle of the humerus. 
Epicoracoid (Gr. ¢fz, upon; kovar, a crow).—A bone 
of the pectoral arch in some Vertebrata. 
Epihyal (Gr. efz, upon; L. hyozdes, hyoid bone).—An 
ossification of the cornua of the hyoidean 
arch in certain fishes ; represented in man by 
the stylo-hyoid ligaments. | 
