LAWS OP NOMENCLATUBE. 
233 
Vranla, in entomology, is an old genus in botany ; it is there- 
fore now changed to Xe/iws. ^ 
Lophyrus, in ornithology, is an old genus in entomo o^y , 
it is now changed to Bihphjrus. 
(190.) Names of genera or sub.genera must not bo 
taken from foreign languages, hut should he fonne 
from the Latin or Gree/c.*— Names taken from living 
languages, even though they have a Latin termination, 
are generaUy barbarous, and always improper, and can- 
not be so classically compounded as if taken irom me 
Greek. Kven names formed from the Latin are of en 
deficient in euphony, and still more so when they are 
compounded of Latin and Greek together. ^ J® 
possible, they should he made out of two Greek words 
with a Latin termination, the following are examples 
of faulty names in ornithology, whether used in a 
generic or specific sense ; — 
Ara, Aracari. 
Cariama. 
Gouan, Guiraca. 
Piaya, PitanguSj Puffinaria. 
Sula. 
Lori. 
Momotiis, 
Nengetus. 
Tinamus, Tacccfcua, 
(191.') Names must not be received, that are borrowed 
from mythological, divine, historical, moral, pathological, 
or other terms.^—“ When we choose a name, observes 
Willdenow, “ having a reference to religious or other 
matters, with which it cannot properly he compared, or 
which are not known to every one, it %s good Jor no- 
thing.” The following names, therefore, have been 
rejected : — 
Catliarractes, Coclilcarius. 
Fratercula, Fregctla, Montezuma. 
Secretarius, Serpentarius, Stercorarius. 
Some exceptions to this rule may be allowed, particu- 
larly in the instances of the Ibis sacra, the sacred 1 is 
of the Egyptians ; Palceornis, as the parrakeets mown 
to the ancients, and Graoula religiosa, a bird held sacrec 
in India. 
* 'Willdenow, lUiger, &c. 
+ Ibid. 
