Nemaclinus atelestos Böhlke & Springer, 1975
Threadfin blenny

Family:  Labrisomidae (Labrisomids)
Max. size:  2.9 cm SL (male/unsexed)
Environment:  benthopelagic; marine; depth range - 25 m
Distribution:  Western Atlantic.
Diagnosis:  Dorsal soft rays (total): 7-37; Anal spines: 2-2. Common amongst Labrisomids: small, often elongate fishes; largest species about 20 cm standard length, most under 10 cm standard length. Head usually with cirri or fleshy flaps on anterior nostrils, eyes, and laterally on nape; gill membranes continuous with each other across posteroventral surface of head. Each jaw with an outer row of relatively large, canine-like or incisor-like teeth, often with patches of smaller teeth behind; teeth usually also present on vomer and often on palatines (roof of mouth). Dorsal and anal fins long, frequently highest anteriorly; dorsal-fin spines often flexible, outnumbering segmented dorsal-fin soft rays; 2 usually flexible spines in anal fin; pelvic fins inserted anterior to pectoral-fin bases, with 1 spine not visible externally; all fin rays, including those of caudal, unbranched (simple). Cycloid (smooth to touch) scales present at least posteriorly on body. Body coloration: varying from drab to brilliant hues; usually with irregular vertical bands, spots, or marbled pattern. Species distinguished by: dorsal fin consisting of spines and 7 to 37 segmented rays; pectoral-fin rays 12; central pectoral-fin rays elongated, filamentous; pelvic-fin soft rays 2; first anal-fin spine of males shorter than second spine; known only from depths greater than 25 m; no cirrus on anterior nostril; only 1 or no cirrus on each side of nape; scales in lateral-line series usually 35 to 41; lateral-line tubes or canals present at least anteriorly on body (Ref.52855).
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 04 February 2009 Ref. (130435)
Threat to humans:  harmless


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