G e r r h o n o t u s i m b r i c a t u s , t. 31. f . 1. Wiegmann, Isis., 1 8 2 8 .x x i. 3(54. Bui. Sci.
Na t. xv ii. 298.
Olive g re e n ; h e a d w hite , s p e c k le d ; s id e s o f th e n e c k , b o d y , a n d t a il, w h ite s p o tte d , th e sp o ts
p la c e d o n th e e n d o f th e s c a le s ; b e n e a th , g re e en ish s ilv e ry w h ite . T a il, b a s e co in |)rc s s e d , a n g u la r
above. B o d y a n g u la r ab o v e , fla t b e n e a th ; limbs sh o rt.
S c a le s o f th e h e a d c o n v e x , sm o o th , sym m e tr ic a l, w ith a lo n g s e v e n -s id e d s u n k e n p a rie ta l p la te ,
m u c h la rg e r th a n all th e r e s t, w ith tw o tr ia n g u la r c e n tr a l p la te s b eh in d i t ; a ll th e o th e r p la te s in p a irs .
S c a le s o f th e b a c k rh om b ic , w ith a n a c u te e le v a te d o b liq u e k e e l, fo rm in g ridge s, p la c e d in s ix or
e ig h t se rie s ; th o s e o f th e o u te r se rie s le a s t k e e le d . S c a le s o f th e s id e s s im ila r , r a th e r sm a lle r, and
n e a r ly k e e lle s s , w ith a wid e b a n d o f g r a n u la r sc a le s b e tw e e n th em a n d th e v e n tr a l s c a le s . S c a le s o f
th e u p p e r p a r t o f th e ta il la rg e r , s im ila r , m o re s tro n g ly k e e le d , a n d p la c e d in four s c r i e s ; o f th e
sid e s o f th e ta il s im ila r, sm a lle r, a n d n o t k e e le d .
G e r e h o n o t u s B u r n e t t i i , t. 3 1 . / . 2.
A b o v e o liv e b row n , v a r ie d w ith u n e q u a l b la c k ish b a n d s ; s id e s y e llow s p e c k le d ; b en e a th
y e llow ish w h ite . T h e y e llow sp o ts a r e on th e t ip s o f th e d a rk s c a le s which form llie ban d s.
S c a le s o f th e b a c k in tw e n ty o r tw e n ty - tw o row s ; th o s e o f th e s ix o r e ig h t c e n tr a l se rie s th e m o st
k e e le d . T h e s c a le s o f th e b e lly tw e lv e -row e d a n d sm o o th . 'I'h e sc a le s o f th e h e ad a rc ra tlie r co nvex,
a n d sm o o th ; o f th e bod y s q u a r e , w ith an o b liq u e k e e l, com m en c in g from th e m id d le o f th e h in d e r
p a r t , a n d c o n tin u e d to th e u p p e r a n g le o f th e o u te r e d g e . T h e ta il a b o u t as lo n g as th e body, th ic k ,
com p re s s ed on th e s id e s , a n d flaltish above .
L e n g th o f th e b o d y a n d ta il e ig h t inche s.
Th is g e n u s is n e a r ly a llied to m y g e n u s , Cic igna, b u t differs from i t in h a v in g n o fem o ra l pores,
PlIEYNOSOMA BL .iINVILLII, t. 2 9 . / . 1.
B o d y y e llow a n d b row n m a rb le d , b a c k w ith s c a tte r e d l a r g e r s c a le s ; sid e s w ith tw o s e rie s o f c om p
re s s e d sc a le s, th o s e o f th e u p p e r se rie s th e l a rg e s t; th e s c a le s o f tb e b o d y m o d e ra te ly smoolli, and
k e e lie s s ; o f th e th ro a t m o d e ra te , w ith th re e o r fo u r o b liq u e d iv e rg in g c lo s e r se rie s o f la rg e r poin ted
sc a le s, p la c e d on e a ch s id e o f th e m id d le o f th e th ro a t.
In h a b . C a lifo rn ia .
P h r y n o s o m a W i e g m a n n i .
M id d le o f tb e b a c k w ith s c a tte r e d la rg e sc a le s ; s id e s o f th e b a c k w ith tw o se rie s o f la rg e , lo n g ,
a c u te a n g u la r sc a le s , th e u p p e r la te ra l se rie s la rg e s t, 'T lie sid e s o f th e b o d y w ith a s in g le sc rie s o f
lo n g , c om p re s s ed , re c u rv e d , sp in e - lik e sc a le s, w ith a b a n d o f sm a ll sc a le s ben e a th th em . S c a le s o f
th e b e lly sm o o th , a n d k e e lle s s ; o f th e th ro a t, sm a ll, sm o o th , a n d e q u a l, with a c o lla r o f m in u te
g r a n u la r s c a le s ro u n d th e low e r p a r t o f th e n e c k .
L e n g th 6 in .; t a i l l | : i n , ; w id th o f s id e s , 1^ in.
F rom sp e c im e n s in th e co lle c tio n o f th e B ritish M u seum and W . O g ilb y , E sq . F rom M e x ic o .
T h is m a y p ro b ab ly be th e P h . orbiculare, W ie gm a n n , Is is , x x i. 364.
F rom th e s e two spe c ie s D r . H a r la n ’s A g am a armata ( P hrynosoma H a r la n i) a p p e a rs to d iffe r;
th e la t te r a g re e s with P h . B la iy iv illii, in th e d o u b le se rie s o f la te r a l s c a le s a n d in th e do rsa i sca!e.s,
b u t th e th ro a t in th e fig u re h a s ve ry sm a ll sc a le s , w ith on ly a s in g le o b liq u e ridge o f o n e o r tw o sc rie s
o f r a th e r la rg e r sc a le s on e a ch s id e . T h e b e lly sc a le s a re sm ooth.
D r . W ie gm a n n h a s d e s c rib e d a n o th e r s p e c ie s from S u r in am , u n d e r th e n am e o f P h . bvfonium,
w h ich h a s a d o u b le s e r ie s o f la te r a l sc a le s , a n d Die v e n tr a l sc a le s k e e led ; a n d m u st, do u b tle ss, be
d is tin c t from e ith e r o f th e above .
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