6. DOKYicnniYS. 181 



a. One of the typical specimens. Prom Dr. Bleeker's Collection. 

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



4. Doryichthys bilineatus. 

 Doryichthys bilineatus, Kaup, Lophobr. p. 56. 



D. 33. Osseous rings 17 + 25. 



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

 On both 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. 

 {Kaup.) 



Hab ? The typical specimen is in the Vienna Collection 



B. Lateral line passing into the loiccr edge of the tail. 



a. Dorsal Jin tcith more than sixty rays. 



5. Doryichthys mento. 



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



p. 685 (not Kuhl ^- v. Hass.). 



zambuzensis, Paters, I. c. 1855, p. 465. 



mento, Bleek. Act. Soc. Sc. Indo-Neerl. i. 3Ianado, p. 75. 



Belonichthys (Syngnathus) zambezensis, Peters, Mossamb. Flmsfisehe, 



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 plates ; 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. 



a. One of the typical specimens of 8. mento. Manado. From Dr. 

 Bleeker'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 species. 



b. Dorsal Jin with less than sixty rays. 



a.. Tail longer than body. 



6. Doryichthys cuncalus. 



Syngnathus cuncalus, Ham. Buch. Fish. Gang. p. 12. 

 Microphis cuncalus, Kaup, Lophobr. p. 64. 



D. 50. Osseous rings 17-18 + 25-27. 



Edges of the sliields without spines. Lateral line uninterrupted 



