338 



Ki.i'oKT <)\ KisiiKS. r.vkr ii: sis<ii<ii> ai-: and tvi'iuxidak 



not rcadi ^he caudal and is rather widely separated from its root, a condition that corrc- 

 sjjontls to the pinutntiis-tyiic (Text-figure 6, </ ) ; in 7 cases, all of which are, with the excep- 

 tion of an adult female, young or half-grown, the anal hn laid llat just misses the root of 

 the caudal, similar to the typical «Of/;nYi--condition (Text-figure 6, b), while imly in a single 

 s])ecinien (115 mm.) from the Jhcluni River does the anal I'm actu.illy reach the caud;il 

 (Text-figure 6, c). 



l'"roni a stud_\- of the tahle it is moreover apparent that of the IS s]iccimens examined 

 by me, excluding Day's 2 originals, .all the three ty|)ical (•.s()(/«;f.s--characters are present in 

 half-.grown specimens only (m;irkcd with an ;i>tcrisk in the tahle"), while only a single 



5 



Fir.URF. 5. Lateral view of anterior parts of body of two specimens of Schholhora.v csociitits Hcckcl sliowing 

 "esociniis" and "punclaliis" types of head and jaws, (a) Day's original specimen of "Schicolhorax csociitiis" from 

 Leli (upper jaw longer). X l/<3- (6) Day's original specimen of "Schicotlwrax puintalKs" from "Kaslimir 

 Lake" i.e., Wukir Lake (lower jaw longer). Nat. size. 



s])ecimen, a large femrde |41() mm.) from the Jhclum Uiver (marked with a ilagger in the 

 table) represents all the true /vnn/a/H.s-characters. The rest of the specimens exhibit nn'xed 

 variations. 



Summarizing the above analysis of characters the following facts may now be definiteU' 

 established : 



(i) Tn the majorit\' (d" full-grown specimens the njij)er jaw is, irrespective of sex 



and age, longer than the l^wer, while in a lew cases the lower jaw is longer 



than the up])er. 



fii) Tn the majority of full-grown specimens, the length of the serrated dtirsal spine 



is, irrespective of sex, almost ecpial to the length of the head Ix-hind the middle 



