Diversity in the Scutes of Chelonia. 



19 



TABLE V. 



Selected Abnormal Terrapin — Malaclemmys centrata (Latr.)- 



G 



<0 



244 

 245 



246 

 247 



248 

 249 



250 



251 

 252 



253 

 254 



255 



I 



^ s 



C o 



(3.) 



3.5 

 3.4 



3.6 



3.6 



3.6 



3.6 

 4. 



4.3 

 4.3 



4.6 



256 



257 



4.6 



SCUTES. 



pr 

 pr 



pr 



Costals. 



1-1 rt 



5 5 

 5 5 



5 5 



6 4 

 5 4 



5 5 



5 4 



Marginals. 



1-1 



-a 



11 



X 



X X 



12 13 



13 12 



X 



13 12 



Remarks. 



Median furrow on anterior portions of Nl 

 and N2; supn'y costals anterior. 



Supn'y costals anterior; LMll nearly equi- 

 valent to RMll and 12. (Carapace distorted 

 in drying, and broken at "x".) 



Supn'y costals anterior and small; seam 

 between N4 and 5 distorted slightly. 



N5 represented by a large and a small scute. 

 (Note that, with seam removed there would 

 be a scute of nearly normal size, and that the 

 areola together would make a normal areola.) 



One medium, one small, and one minute 

 scute occupying place of LM9 — (Wound?). 



Asymmetry of scutes and distortion of 

 seams in posterior region of carapace (Neur- 

 als, Costals and Marginals). 



V. fig. 50, also description p. 26. 



7 scutes in neural series (2 in place of 4th). 



5th neural renresented by 2 scutes of un- 

 equal size; RM12 incompletely divided. 



Small L inguinal. 



Large inguinals; small scute immediately 

 anterior to 1j inguinal. 



Of abnormal shape; 12th L marginal repre- 

 sented by 2 scutes; only 12 R marginals, but 

 between RMll and RM12, a small gap occu- 

 |)ied by soft skin. Supn'y costals posterior: 

 also a very small scute between LC4, LC5 and 

 marginals. Nuchal partly divided; inguinals. 

 (Vertebral column distorted to left posteriorly. 

 L side of carapace flattened, somewhat con- 

 cave posteriorly. Shell suggestive of injuries 

 rec'd in embryonic stage. E\'idence of 

 much shedding, horny covering thin and 

 smooth.) 



RM12 equivalent to LM12 and 13. 4 

 scutes occupjang a space almost exactly co- 

 inciding with that of normal N5. Small in- 

 guinal. 



LC3 followed by two scutes, which together 

 are almost exactly equivalent to a normal C4 

 (cf. RC4). 



3 

 tlO 



2 



18 



19 

 24 



40 

 36 



50 



14 

 49 



F 

 G 



39 



23 



