Actinopterygii (ray-finned fishes) > Gobiesociformes
(Clingfishes) > Gobiesocidae
(Clingfishes and singleslits) > Gobiesocinae
Etymology: Trachelochismus: Greek, trachelos = neck + Greek, schismos, -ou = cut (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 36 m (Ref. 9003). Temperate
Southwest Pacific: endemic to New Zealand.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm TL male/unsexed; (Ref. 9003); max. reported age: 4 years (Ref. 9003)
Morphology | Morphometrics
soft rays: 7 - 8. Rose-pink in color, becoming scarlet on tail and fins. Pink with yellowish tinges ventrally. Deep reddish patch over most of body dorsally. Distinguished from other clingfishes by a broad, bluntly pointed head, with a thick, fleshy upper lip, no longitudinal groove below the eye but a line of papillae is usually present. The sucking disc has flattened papillae continuous across the anterior margin.
Inhabits sheltered areas beneath rocks of the intertidal at mid to low tide level. Also found in subtidal areas. Feeds on small crustaceans and mollusks.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Paulin, C. and C. Roberts, 1992. The rockpool fishes of New Zealand (Te ika aaria o Aotearoa). Museum of New Zealand (Te Papa Tongarewa). 177 p. (Ref. 9003)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 9.7 - 17.6, mean 13.1 (based on 103 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00244 - 0.01238), b=3.11 (2.91 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.0 se; Based on diet studies.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=4).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (27 of 100) .