93 



minent, smooth or only slightly crenulated. Inferior cristae of 

 trunk and tail generally continuous, when this is the case the 

 median cristae of trunk are deflected to the inferior cristae 

 of the tail without coalescing with them ; by exception the 

 inferior cristae are not continuous and then the median cristae 

 of the trunk are continuous with the inferior cristae of the 

 tail. Lateral intermedial shields, especially on the tail, 

 large and transversely oblong; cutaneous appendages are 

 wanting. Head 9 — 9^3 times in length with a median ridge 

 continued on snout; front and vertex more or less rough 

 by lines or shagreen. Eye 5 — 6 times in head. Snout equal 

 to or somewhat longer than postorbital part of head, about 

 twice longer than eye. Operculum inflated, with a complete 

 longitudinal keel and radially arranged rugosities or radiating 

 lines. Brown, a white spot or a white black-margined ocellus 

 on each trunk-ring along the inferior cristae; ventral surface 

 of tail occasionally with alternating brown and yellow dots; 

 ventral surface of snout and head with black points; caudal 

 black. Length 138 mm. [A s^tc\.n\Q\\ oi Syiignalhns heptagonus 

 Blkr. of Bleekek's collection in the Leiden Museum seen by us]. 



Nom. indig. : Sogoprono (Patjitan). 



Habitat: Java (Patjitan, Surabaya); Straat Madura; Bali; 

 Celebes (Makassar); Sumatra (Benkulen). — British India, Ceylon, 

 Assam, Nicobars, Malay Peninsula. 



In sea, in brackish water of estuaries and in fresh water of 

 rivers and brooks. 



2. Ichthyocampus kampeni M. Web. [Fig. 38, p. 91]. 



Ichfhyocampus Kampeni Max Weber, Siboga-Expcditie, Fische 1913, p. II4- 

 Ichthyocampus Beicheri Duncker, Mitt. a. d. naturh. Mus. Hamburg XXXII. 

 1915, P- 95 (P-PO- 



D. 19 — 20; A. 3 ; P. 12 — 13; C. 10; Rings i6-^2g — 30; sub- 

 dorsal rings 1+4 — 5 or 2+3 — 4. 



Rather stout and short; body somewhat heptagonal, the 

 abdominal crista being only slightly prominent. Tail from the 

 2nd or 3»d ring tetragonal, somewhat shorter than twice the 

 length of the trunk. Shields corrugated ; their edges prominent, 

 smooth; especially on the posterior part of the tail they are 

 sharp, on each ring increasing posteriorly in height and ending 

 in a sharp prominent tooth. No cutaneous appendages. Superior 

 and inferior cristae of trunk continuous with the corresponding 



