104 



Head 8V 3 9 times in length; 3 times in trunk; tail about 

 twice longer than trunk. Shields transversely striated, their 

 edges prominent and serrated, the inferior edges ending in a 

 short spine; intermedial shields oval, smooth. Snout about equal 

 to postorbital part of head, its posterior half with 2 3 median 

 dorsal spines and a pair of short lateral spines; the concave 

 interorbital space with prominent lines and a median spiny 

 crest; similar crests on occiput and neck. Arborescent cuta- 

 neous appendages - - more developed in the male on each 

 ring on its dorsal surface and one on each scutal edge; similar 

 appendages above and below eye and before branchial opening. 

 Opercular keel with a basal spinous prominence, ventrally 

 w jth 5 12 radial ridges. Before base of pectorals a comb-like 

 crest. Brown, with whitish marblings. Operculum with or without 

 white stripes. Length 152 mm. [A specimen from Japan of 

 BLEEKER'S collection in the Leiden Museum seen by us]. 



Habitat: New Guinea. -- Ceylon, Andamans, Philippines, 

 Japan !, Thursday Island, Prince of Wales Island, North West 

 Australia. 



2. Halicampus elegans (Steind.) 



Doryichthys elegans Steindachner, Abhand. Senck. naturf. Gesellsch. XXV. 1901, 

 P- 459- 



D. 18; Rings 14-1-32 ; subdorsal rings 1+4 (2-4-3?). 



Head short, about 9 times in length, more than 2 ! / 2 times 

 in trunk. Tail more than twice longer than trunk. Superior 

 edges of shields extremely finely dentated, posteriorly ending 

 in a small spine and anteriorly knotted. Snout about 2 1 / 2 times 

 in length of head, mesially with a rather strong spine before 

 the eyes. Eye about 4 times in length of head; orbital ring 

 prominent; interorbital space deeply concave. Occiput and 

 nape with a median keel. Operculum vaulted with a curved 

 keel, feebly ascending hind- and upwards and. with numerous 

 prominent lines. Numerous cutaneous simple filaments on head 

 and body; on the trunk on each shield a filament near the 

 edges. Dorsal situated above 5 rings. Light yellow, on each 

 ring 23 dark brown annular crossbands, in the middle of 

 their height more or less completely united. Length of the 

 single specimen known 51 mm. [After STEJNDACHNER's des- 

 cription and figure]. 



Habitat: Ternate, 



