Thymichthys politus
Thymichthys politus (Richardson, 1844)
Red handfish
photo by Hall, D.J.

Family:  Brachionichthyidae (Handfishes)
Max. size:  9 cm SL (male/unsexed)
Environment:  demersal; marine; depth range - 6 m
Distribution:  Southwest Pacific: Endemic to Tasmania.
Diagnosis:  Dorsal soft rays (total): 18-19; Anal soft rays: 9-10. This species is distinguished by the following combination of characters: large esca, 45-65% (mean 52%) of illicium length (including esca); short illicium, thick and fleshy, no dermal spinules, length 14-17% SL, 3-3.4 times in head length, well separated from upper jaw (pre-illicial length 3.3-7.9% SL); moderate size eye, 6.9-9.3 times in head; body variably covered with small, close-set flattened warts but no well-developed dermal flaps; posterior margins of warts usually with a small, sharp, prostrate spine (mostly embedded with its tip sometimes visible); deeply embedded scales, widely spaced; second dorsal-fin rays 16-17, fin base 63-71 (mean 67)% SL; length of second dorsal-fin spine 0.7-1 times length of longest ray of second dorsal fin; anal-fin rays 9-10; pectoral-fin rays 9 (rarely 10); body variable shades of red, often paler ventrally; often bluish or blackish near dorsal tips of pectoral and pelvic fins, and along margins of dorsal, anal and caudal fins (Ref. 82446).
Biology:  A benthic species (Ref. 75154) which occurs in inshore waters (Ref. 7300, 75154), most often observed underneath algal canopies (Ref. 132909). Rare and cryptic, particularly vulnerable to extinction (Ref. 132909).
IUCN Red List Status: Critically Endangered (CR); Date assessed: 30 April 2018 (B1ab(iii,v)+2ab(iii,v); C2a(i)) Ref. (130435)
Threat to humans:  harmless


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