6. DOKYlCUrilYS. 181 



a. One of the typical specimens. From Dr. Eleeker's Collection. 



b. Adult, male. Sarawak. Presented by the Marquis Doria. 



4. Doryichthys bilineatus. 

 Doryicbthys bilineatus, Kaup, Lophobr. p. 56. 



D. 33. Osseous rings 17 + 25. 



Edges of the shields not distinctly toothed. Lateral line interrupted. 

 On botli sides of the median line the halves of the operculum are 

 striped and scarred. Length of the snout equal to the distance of 

 the front margin of the orbit from the extremity of the pectoral fin. 

 Dorsal standing on six tail-rings. Tail shorter than the body. 



Hab ? The typical specimen is in the Vienna Collection. 



B. Latei'al line passing into the lower edge of the tail. 



a. Dorsal fin with more than siaig rags. 



5. Doryichthys mento. 



Syngnathus fluviatilis, Peters, Monatsber. Ak. Wiss. Berl. 1852, 



p. 085 (not Knhl Sf v. Ilass.). 



zambezeusis, Peters, I. c. 1855, p. 465. 



monto, li/eeh. Act. Soc. Sc. Indo-Neerl. i. 3Ianado, p. 75. 



Eelonichthys (Syngnathus) zambezeusis, Peters, Mossamb. Flussfische, 



p. 109, taf. 20. fig. 5. 



D. 66-74. Osseous rings 19-20 + 18-26. 



Shields -without spines. Lateral line continuous with the lower 

 caudal edge. Snout nearly as long as the postorbital part of the 

 head ; a ridge runs along the median line of the snout, crown, 

 and nuchal jilates ; a low ridge along each side of the crown. Oper- 

 culum with a very feeble ridge. Body rather compressed, deeper 

 than broad, with the ridges well developed. Tail sometimes rather 

 longer, sometimes shorter than the body. Dorsal fin standing on 

 fourteen or sixteen rings, ten or twelve of which belong to the 

 body. Caudal fin well developed. 



Fresh waters of Celebes and Eastern Africa. 



«. One of the typical specimens of S. mento. Manado. From Dr. 

 Uleeker's Collection. 



After having compared Prof. Peters's detailed description with an 

 example of S. mento, I have convinced myself that the Celebes and 

 East-African specimens belong to the same sj^ecies. 



b. Dorsal fin with less than sixty rags. 



a.. Tail longer than bodg. 



6. Doryichthys cuncalus. 



Syngnathus cuncalus, Hum. liuch. Fish. Gang. p. 12. 

 Microphis cuncabis, Kaup, Lophobr. p. 64. 



D. oO. Osseous rings 17-18 + 25-27. 



Edges of the shields without spines. Lateral line uninterrupted. 



