SERRE 
Ty! 
Ua Wits * ay eT u's ow yy ine p 
i} 
, EOI Oe Te ry lay Crm ttt 
OOD ATT a co a TE em or on Tea, Ra ay I Se 
a Lae 
CAUDAL AUTOTOMY AND REGENERATION IN THE GECKO 73 
TEXT-FIG. 2. 
as VS J PL.AUT. 
a 
Fee LO TOL SSS MST: wee 
=— See EEO FQ 
=a 0 EEO FCO ne Epes 
ys SouuarNIse eau SerTeTuen 
Sere aa aargenesesseter ieee: ie 
Seay Fes BREE BEccse mune men saree eon Ms 
a ¥ fi ie s eT Se ir iti rT lm, 
Acietin: TG ee Ce LR CNT e, "CH ay 
CO ora Ae aT f Ut, ep q ttt, ® = 
TUCO tern cay RP era: Lo Ae cree LR Q Pa FM 
- = U 
mi 
TA eT co mE ommend Rem LRT wm Titty 
Se ee ‘PL.AUT 
: ¥ EWGwINCE : ; Ce 
HA EM (cs 
Structure of the Original and Regenerated Tails of the Gecko, 
A. Semi-diagrammatic thick sagittal section through the original tail of the 
Gecko (x cir. 8). Aas=extent of autotomy segment through the vertebrae ; 
B=unsegmented base of tail; cs=sphincter on caudal artery; cvc= 
constriction of caudal vein anterior to autotomy plane; FrB=fat band ; 
FL= subcutaneous fat layer ; rm= flexor muscle ; HA=haemal arch; MB = 
muscles of base; NC=spinal cord; Ncc=notochordal canal ; N.sP. = neural 
Spine; PL.AUT. = plane of autotomy; TP= transverse processes of vertebra ; 
v=cloacal opening ; vS= extent of vertebral segment; v.sc. = transversely- 
elongated ventral scales. B. Semi-diagrammatic thick transverse inter- 
vertebral section through the original tail of the Gecko ( x cir. 8); FB and FL 
as in A; sN=spinal nerves. The numerals indicating the flexor muscles 
seen in transverse section are for identification of these muscles with those 
shown in Text-fig. 3 (A, B,C, D, E, F). C. Sagittal section through the 
junction of the original and the regenerated tails ( x cir. 60). Most letters 
asin A. or=cartilaginous tube of the regenerated tail ; N.c.’= extension of 
epithelium lining the canalis centralis into the regenerated tail. The general 
character of the hyaline septa which mark the autotomy planes is well shown. 
