Teleostei (teleosts) >
Gobiesociformes (Clingfishes) >
Gobiesocidae (Clingfishes and singleslits) > Diademichthyinae
Etymology: Propherallodus: Greek, pro = first, in front of + Greek, allos = other + Greek, odous = teeth (Ref. 45335).
Eponymy: John C ‘Jack’ Briggs (1920–2018) was a prominent scholar and a pioneer in the field of biogeography where his contributions are widely recognised. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - 3 m (Ref. 137549). Temperate
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.0 cm SL male/unsexed; (Ref. 559)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 6 - 8; Anal soft rays: 5 - 7; Vertebrae: 32 - 33. This species is distinguished from its congeners by the following set of characters:D 6-8 (modally 7); A 5-7 (7); pectoral-fin rays 21-22 (22); vertebrae 32-33 (32); in lateral view, upper end of gill membrane in level with 6th to 8th (usually 7th or 8th) pectoral-fin ray base; posterior nostril slightly behind anterior margin of eye; head size moderate, its length 29.8-33.8 (mean 31.7) % SL; disc size moderate, its length 18.1-21.6 (19.9) % SL; caudal peduncle slightly narrowed, its depth 6.2-10.5 (7.8) % SL, 1.7-2.2 in caudal-peduncle length; dorsal- and anal-fin
bases short, lengths 10.3-14.6 (12.2) and 9.2-15.6 (12.4) % SL, respectively; pre-dorsal-fin length 68.0-74.2 (71.7) %SL; dorsal-caudal length 26.3-32.0 (28.6) % SL (Ref. 137549).
Body shape (shape guide): elongated; Cross section: circular.
A rare fish found in tide pools, under boulders in the subtidal zone (Ref. 559), or intertidal areas with rocky substrate (0.5–3.0 m depth), to which it attaches using its adhesive disc (Ref. 137549).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fujiwara, K. and H. Motomura, 2018. A new species, Propherallodus longipterus, from the Philippines and redescription of P. briggsi Shiogaki and Dotsu 1983 (Gobiesocidae: Diplocrepinae). Ichthyol. Res. 66(1):35-48. (Ref. 137549)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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