Scientific Name
Syngnathoides biaculeatus  
Syngnathoides biaculeatus雙棘擬海龍
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Bloch, 1785) Depth 0 - 5M
Chinese 雙棘擬海龍 Poisonous Fish No 
Family_Chinese 海龍科 Economic Fish Yes 
Family F295 Syngnathidae Edible Fish No  Chinese In Mainland China 擬海龍 
Max Length 29 cm  Aquarium Fish Yes  Common Name 棘海龍、海龍 
Distribution in World India Ocean to Pacific Ocean   Distribution in Taiwan South、North、ShaoLiuChew 
Habitats Coral、Coastal  Holotype Locality Indian Ocean 
Synonyms Stigmatophora unicolor, Syngnathoides bicauleatus, Syngnathoides biculeatus, Syngnathoides blochii, Syngnathus biaculeatus, Syngnathus tetragonus   
Reference 臺灣魚類誌(沈等, 1993);Fishes of Japan(Nakabo, 2002);Fishbase(2005);The Live Marine Resources of the Western Central Pacific, Vol.4(FAO,1999)  沈世傑 編 Shih-Chieh Shen ed. 1993 Carpenter, K. E. etc. 1999 Nakabo T. 2002 
Specimen List ASIZP0053855. ASIZP0058217. ASIZP0059640. ASIZP0062988. ASIZP0062989. ASIZP0073452. ASIZP0916005. NMMBP02558. NMMBP03112. NMMSTP00499.  
Common Name Two-barbel pipe fish; Double-ended pipefish; Alligator pipefish 
Redlist Status DD IUCN Redlist: Data deficient(DD)  1996-08-01   
Characteristic Body typically slender and elongate, without scales, encased in a series of bony rings. Snout long, its length 1.7-1.8 in HL. Superior and inferior ridges continuous with their respective tail ridges, the inferior trunk ridge inconspicuous and located on venter of trunk; lateral trunk ridge deflected dorsad behind anal ring, ends just below superior tail ridge near rear of dorsal-fin base. Median dorsal snout ridge low, entire; usually with a spine-like point on supraorbital ridge over posterior third of orbit; opercle without a longitudinal ridge; scutella absent; dermal flaps wrll developed in juveniles, often absent in adult. Rings 15-18 + 40-54, darsal-fin rays 37-50, pectoral-fin rays 20-24. Mainly greenish to brown with variable darker markings, sometimes with a narrow dark stripe on opercle.
habitats Occurs in protected coastal shallows over or among algae, seagrasses, or floating weeds. Juveniles occasionally found near the surface. 
Distribution Distributed in the Indo-Pacific feom Red Sea south to South Africa, east to Samoa, north to southern Japan, south to New South Wales; throughout Micronesia except the northern Marshall Islands Southeast Atlantic: Knysna, South Africa. It is found in south 
Utility Used in Chinese medicine to extract Hailong, one of the important drugs. Has been reared in captivity.