Actinopteri (ray-finned fishes) > Blenniiformes
(Blennies) > Chaenopsidae
(Pike-, tube- and flagblennies)
Etymology: Acanthemblemaria: Greek, akantha = thorn + Greek, emblema, -atos, anything that is nailed, knocked in; also anything with bass or high relief (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated. Tropical; 18°N - 10°N, 90°W - 58°W (Ref. 56273)
Western Central Atlantic: Bahamas (Ref. 5521) to Tobago.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.1 cm TL male/unsexed; (Ref. 5521)
Morphology | Morphometrics
spines: 2. Species distinguished by: sides of body with series of dark bands or large oval blotches; top of head often spiny; patch of cranial spines on nape extends posterior to supratemporal commissural pore, almost to dorsal-fin origin; inner rim of posterior infraorbital bone spinous or with tuberculate spines; two or more rows of teeth on each palatine bone; dorsal fin consisting of spines and segmented rays; total dorsal-fin elements 29 to 40. Common amongst Chaenopsids: small elongate fishes; largest species about 12 cm SL, most under 5 cm SL. Head usually with cirri or fleshy flaps on anterior nostrils, eyes, and sometimes laterally on nape; gill membranes continuous with each other across posteroventral surface of head. Each jaw with canine-like or incisor-like teeth anteriorly; teeth usually also present on vomer and often on palatines (roof of mouth). Dorsal-fin spines flexible, usually outnumbering the segmented soft rays (numbering 7 to 37), spinous and segmented-rayed portions forming a single, continuous fin; 2 flexible spines in anal fin; pelvic fins inserted anterior to position of pectoral fins, with 1 spine not visible externally and only 2 or 3 segmented (soft) rays; all fin rays, including caudal-fin rays, unbranched (simple). Lateral line absent. Scales absent (Ref.52855).
Inhabits limestone slopes rather than patch reefs and these slopes are usually dotted with small brain corals, stinging coral, sea fans, whips, and sea urchins (Ref. 5521).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Böhlke, J.E. and C.C.G. Chaplin, 1993. Fishes of the Bahamas and adjacent tropical waters. 2nd edition. University of Texas Press, Austin. (Ref. 5521)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 27.4 - 28.4, mean 28 °C (based on 142 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00184 - 0.01190), b=3.08 (2.86 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .