Siphamia cephalotes (Castelnau, 1875)
Wood's siphonfish

Family:  Apogonidae (Cardinalfishes), subfamily: Apogoninae
Max. size:  5 cm SL (male/unsexed)
Environment:  benthopelagic; brackish; marine; depth range 0 - 7 m
Distribution:  Eastern Indian Ocean: endemic to southern Australia, from Shark Bay, Western Australia to Byron Bay, New South Wales.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 8-8; Anal spines: 2-2; Anal soft rays: 8-9. This species is distinguished by the following characters: D1 VI, D2 I,8 (rarely 7 or 9 soft rays); A II,8-9; pectoral fin rays 12-14, unbranched and compressed distally; tubed lateral-line scales 22-23; median predorsal scales 4-5; total gill rakers 4-6 + 14-16, developed gill rakers 1-3 + 13-16 = 15-18; gill rakers on ceratobranchial 9-10; body relatively slender, depth 3.2-4.8 in SL, and body width 1.6-1.8 in the depth; eye diameter 3.2-3.7 in HL; first dorsal spine 1.1-1.3 in second spine; second dorsal spine 2.6-3.6, spine of second dorsal fin 5.1-6.7, and second anal spine 6.0-7.4, all in head length (HL); pectoral-fin length 5.8-6.7 and pelvic-fin length 5.7-6.1 in SL; caudal-peduncle length 1.05-1.4 in distance between pelvic spine insertion and anal-fin origin; preopercular edge and ridge smooth, with the ventral edge weakly ossified and usually slightly crenulate; palatines with 1-3 series of small teeth; first infraorbital pore a complex of about 7 small pores; scales large, mostly ctenoid; tubed lateral-line scales with vertical series of papillae; the tip of light organ on each side of tongue bound by membrane (Ref. 90035).
Biology:  Benthic species (Ref. 75154) which occurs over soft bottom in coastal embayments and in the lower reaches of estuaries (Ref. 33616). It is found usually in schools near kelp or seagrass beds of Zostera or Posidonia at depths of 1-10 m (Ref. 90035).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless
Country info:   
 


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