Herre: Philippine Eels 

 Genus MOKINGTJA Gray 



Body wormlike, depth 30 to 60 in length, dorsal and anal well 

 developed around tail, then reduced to a low fold or ridge of 

 skin; farther forward again developed so that they are as high 

 as or higher than on tail, with visibly developed rays ; pectorals 

 may be vestigial, but are usually well developed though small; 

 teeth acute, in one row on jaws, uniserial or irregularly two 

 rowed on vomer. 



This genus is easily distinguished by the peculiar character 

 of the dorsal and anal fins, each being divided into two parts, 

 separated by a considerable interspace. 



Key to Philippine species of- Moringua. 

 a 1 . Intermaxillaries with two rows of teeth; depth less than 35 in length. 



M. robusta. 



a a . Intermaxillaries with one row of teeth; depth over 50 in length; distance 



of anal from anus four-fifths the length of head M. cagayana. 



Moringua robusta sp. nov. Plate 7. 



Depth 3.5 in head and 34.4 in total length, head 5.16 in trunk 

 and 9.77 in whole length; tail shorter than head and trunk 

 together, being contained 1.4 in trunk alone and is almost 37 per 

 cent of total length ; eyes small, 26.8 in head and 2.4 in the small, 

 rather sharp snout which is Hi in head; mouth extending 

 beyond eye, 6.7 times in head, lower jaw very slightly projecting; 

 distance of origin of anal from anus 4.46 in head ; origin of dorsal 

 behind that of anal, the difference being a trifle more than 2.3 

 in head, while distance from anus to dorsal is a very little more 

 than 1.5 in head, being almost exactly two-thirds the length 

 of head; pectorals, though short, are broad and well developed, 

 8| in head, with nine rays, base equal in breadth to length of 

 snout; teeth all small, pointed, recurved; maxillary teeth tiny, 

 eighteen to twenty in a single row; nine small teeth in outer row 

 on intermaxillary, with two or three slightly larger ones in inner 

 row on each side; seven or eight teeth on vomer; about twenty 

 small teeth on each side of lower jaw. 



This eel is noticeable for its stout body, which is slightly 

 broader than its greatest depth, and for its long head, which 

 terminates in noticeably small, weak snout and jaws; dorsal and 

 anal fins originate as a mere fold but soon become comparatively 



