I
“ Ob s. M em b ra riie ra d io rum sp in o so rum pinnae d o rs a lis a p ic e ro tu n d a ta e , obtuse e , ib iq u c solutae,
ra d ils en im longiorcs.
“ I n m iiltis c o n v e n it Ch a t, macrohpidoto, L in n . Syst. 4 6 4 ,1 4 , s e d d if f e r t spe c ific^ .” —iS’oZander, M S S .
I n th e E a n k s ia n d raw in g th e re is a sh o rt sp in e o n th e f ro n t o f th e u p p e r p a r t o f e a c h o rb it, a n d
th e u p p e r e d g e o f th e o rb it is s e r r a te d : th e p o s te rio r a n g le o f th e operculum is ro u n d e d . I t d iffe rs also
in th e g ro u n d c o lo u r o f th e b o d y h av in g a yellow ish t i n g e ; in th e p e c to r a l fins, th e soft p a r t o f th e
do rsa l a n d th e c a u d a l, b e in g s tr aw - c o lo u r e d , a n d th e v e n tra ls d e e p b l a c k ; a n d in th e c o lo u r o f th e
tip s a n d nose b e in g less t in g e d w ith re d .
O f th e spe c ific d is tin c tio n b e tw e e n th e Hen. chrysostomus a n d th e H en . mac rolepidotus,t\\Qte c a n
b e no d o u b t. T h e c h ie f d iffe ren c e s in form co n sist in th e w a n t o f co n v ex ity in th e fo rm e r in th e ris e
from th e ey e to th e do rsa l f in ; in th e ra p id d e c liv ity o f th e ra y s o f th a t fin b e h in d th e fo u rth ; a n d in
th e e lev a tio n o f tlie soft r a y s to a h e ig h t co nside rably e x c e e d in g th a t o f th e a d jo in in g sp in o u s rays.
T h e colours, a lth o u g h e s s en tia lly th e sam e , a re , a s it w e re , c o u n te rc h a n g e d in th e tw o sp e c ie s , n e a r ly
a ll th e p a rts w h ic h a re d a rk in th e o ne b e in g p a le i n th e o th e r, a n d vice versa.
T h e ex is ten c e o f a lo n g filam en t a t th e e n d o f th e fo u rth ray o f th e d o rsa l fin a p p e a r s to b e in d ic a te d
b y th e tw is te d form g iv en to th a t p a r t in th e d raw in g .
F am . S C O M B R ID ^ .
C y b i u m s a r a .
Cyb. elongaitm; pinna dorsali priore longissimd, humili, radiis paucis anieriorilms eleoaiis.
PLATE XX. FIG. 2.
Hab. apud Loo-Choo.
A d e s c rip tio n a n d sk e tch o f th is fish w e r e p re s e rv e d b y M r . C o llie ; a n d i t is a lso m e n tio n e d in
th e n o te s o f M r. L a y . M r . Collie d e s c rib e s i t a s “ a lo n g , ta p e rin g , ro u n d e d fish, w ith o u t d is tin c t
sc a le s , e x c e p t in th e m id d le la te r a l c a u d a l rid g e s . T h e ta il h a s tw o a n g u la r rid g e s c o n v e rg in g
p o s te rio rly , one on e a c h side o f th e m id d le la te r a l c a u d a l r id g e : th e la t te r w a s m o re p rom in e n t o n th e
r ig h t s ide th a n on th e le ft. T h e te e th a re la te r a lly com pre ssed, a n d o f c o n s id e ra b le b r e a d th a lo n g th e
j aw s , w ith th e crow n r o u n d e d : th ey fo rm a k in d o f s e r r a tu r e . T h e r e a r e a lso sm a ll p o in ted te e th 6n
th e p a la te , a n d o n th e os h yoide sl T h e u p p e r jaw is m o v e a b le ; a n d when th e m o u th is o p e n e d , th e
a n te r io r a n d s u p e r io r p a r t o f th e s n o u t is d ir e c te d u pw a rd s , th e p a r t o f th e ja w n e a r th e a n g le b e in g
d e p re s s e d . T h e low'er jaw , tow a rd s tb e an g le s , is o v e rla p p e d for a c o n s id e rab le d is ta n c e by th e u p p e r
w h e n th e m o u th is sh u t. T h e firs t d o rs a l fin h a s tw e n ty -fiv e sp in e s , a n d is lo d g ed iu a gro o v e o f the
b a c k : th e se co n d h a s n in e d is tin c t p in n u le s , a n d o ne co n n e c te d w ith th e sp in o u s p o rtio n b y its th in
m em b ran e . T h e d is tin c t p in n u le s s ta n d u p o n a fine p e d ic le th a t sp re ad s o u t a little from s ide to s id e ,
s u p p o rtin g u p o n its u p p e r su rfa c e a th in tr ia n g u la r m em b ran e . T h e an a l fin co rre sp o n d s to th e la s t
d o r s a l, a n d lik e i t h a s n in e s ep a ra te p in n u le s , a n d o n e c o n n e c te d : tb e a n g u la r m em b ra n e o f tlie se is
u p o n th e low e r su r f a c e o f th e p ed ic le .”— C.
T h e following m e a su rem e n ts a re p re s e rv e d in M r. Collie’s n o te s :
Ft. in.
“ F rom th e an te rio r p a r t o f th e s n o u t to th e a n te r io r p a r t o f th e o rb it 0 6^
p o s te rio r p a r t o f th e pra ope rculum 0 8 i
m a rg in o f th e opercufam 0 lOJ
a n te r io r p a r t o f th e p e c to ra l f in .. . 0 1 6 |
p o s te rio r p a r t o f th e first d o rsa l fin 2 0
a n te r io r p a r t o f th e se cond d i t t o . . 2 2i-
G r e a te s t d is tan c e from b e lly to b a c k (on a lin e w ith th e p e c to ra l fin) 0 6 J
D is tan c e b e tw e e n th e tip s o f th e tw o s egm en ts o f tb e c au d a l f in s 0 10
“ Only o ne in d iv id u a l w a s se en , which th e b o a tm en wo u ld n o t p a r t w ith . I t w a s te rm e d by th em
S a ra ,”— C.
Is
1 |