A ridge on a bone ; a fleshy longi- 
nal ridge as in newts (zool.). 
Loeasious (kréta’shiis) a. [L. creéa, 
Appi. the entire period 
between the Jurassic and Tertiary, 
or the upper Sitios: of this period 
(pal. 
eribelium (kribél'tim) 7. [L. erédrum, 
e.] A special spinning organ 
Jodie. only in certain spiders (zo0/.). 
cribriform srk deorigecek [L.crtbrum, 
a sieve ; forma, shape.] Sieve-like 
(60t., anat., zool.). 
eribriform rm oell,—sieve cell (doz). 
eribriform »—the folded m 
bran cuapitg papillae in 
interradial angles of certain star- 
mlishes (00!) 
late,—-the horizontal 
d 
rm.] A ik 
ilage i e larynx, sition: Ora 
with the thyroid and the arytaenoid 
cartilages 
erissal (kris’ 1) a. [L. crissare, to 
ve the eprint, Pert. the 
crissum (zoo/.). 
coche 
The Secicticne of 
the : protoloph in lophodont molars 
(z0 
z 
n. [M.E. crois, a mag 
nism produc d by t 
arents of different 
—— (kro afit) #7. [Gk. &rot- 
aphos, the temples.] The 
tem saccuk ous (anat. 
— “ae Nn. [F. crochet, a 
mall cu ee chaeta, 
ere st the end (zool. 
crown (krown) wv. [L. corona, a 
64 CRY- 
crown.] The grinding surface of 
erucial eases nts, — 
which con ieee femur and tibia 
in the faa ‘join t (am 
cruciate (kroo’shiat, pe ‘siat) Geo ths 
crux, Cross With leaves or petals 
in the form of a cross (604); 
Y-s or -shaped, afl. 
muscles, ent — 
[L. cruor, blood. | 
ots in fupanien bloo 
hys.). 
— (kroo’érin) ir 
ood. ] Haemoglobin (ph 
rebri,—twocylin pen tasted 
at the base of the nig: they emerge 
hed, 
from the pon disappear one 
the substance oe the cerebral hem 
eee (anat.). 
ral (kroo’ral) a. 
—_ crus, leg.} 
ee the thigh (@ (ana 
crureus (kroo'réiis) 7. [L. crus, leg.] 
The pone graces muscle of the 
nat, 
ic} 
Ln J 
ga 
ru lis) #., erura (kroo’rai) plu. 
[L. erws, leg.] The shank; any 
body likened to a leg or to a pair 
of legs (an 
crusta (kris md) n. YUSIOL OB 
shell.] The staat part of the 
substantia nigr. the cerebral 
peduncles (avaz.) ; the pees layer 
in teeth (zoo 
— (kritsta’ shits) a. [L 
vusta, a sShell.| With crustacean 
a sae Red (zool. 
erypt (kript) 7. [Gk. kryptos, hidden. ] 
simple glandular tube or cavity 
nat.). 
tocarp (krip’tékarp) . 
the sporophyte phase in the 
-)s 
(krip’tégam) 7. = ie 
Bh ‘cnr hidden ; pace unio A 
name given to that group of points 
for the supposed caren that sexual 
reproduction was concealed; cf 
Paces bot. 
ryptoneurous (krip’ toni — a. ic 
i nic hidden ; 
With no definite or distinct nervous 
system (zoo/.). 
