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Species: Parasaccogaster melanomycter, Blacknose Brotula

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head: loose thick skin covers eyes, many filaments
inside nostrils black
no scales
preopercle - no spine
pectoral base - long bones
LL: 12 dark papillae before anus

Parasaccogaster melanomycter (Cohen, 1981)

Blacknose Brotula

Snout fleshy; head wide (12% SL); many small filaments on head; skin thick, loose on head; eye small, under skin; front nostril immediately above the top lip; top jaw bone vertically expanded at rear, upper part not in a sheath, no hook at lower rear angle; teeth on sides of roof of mouth; no central tooth patch at bottom of gill arches; gill opening not extending above level of top pectoral ray; 3 spiny proturberances and spiny plates on first gill arch; no spines at lower corner of preoperculum; a strong spine at upper corner of operculum; 8 branchiostegal rays; gill opening ends at of below top of pectoral base; dorsal fin 74; anal fin 37, its origin behind mid-body; pectoral fin without an elongated stalk-like base, 18 rays; pelvic fin is a single thread that originates under base of pectoral fin; anal fin originates on rear half of body; dorsal and anal fins broadly joined to tail fin; 1 lateral line, bends down to midside slightly after mid-body; scales absent; male with a stalked sex organ.

Light brown, darker above; inside each nasal chamber black, a white area between that and eye; lateral line in an unpigmented line, with 12 dark papillae before anus, clear papillae behind that; filaments on head dark; edges of dorsal and anal fins narrowly pale.

Lives on reefs.

Reaches 7.2 cm

Depth range: 6-8 m.


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  • Marine
  • Marine Only
  • Inshore
  • Inshore Only
Water Column Position
  • Bottom
  • Reef only
  • Corals
  • Reef (rock/coral/oyster)
  • Reef associated (reef + edges-water column & soft bottom)
FishBase Habitat
  • Reef Associated
Feeding Group
  • Carnivore
  • Data
  • Data
  • Mobile benthic crustacea (shrimps/crabs)
Egg Type
  • Data
  • Live birth
  • Pelagic larva
Global Endemism
  • All species
  • Greater Caribbean endemic
  • West Atlantic Endemic
Regional Endemism
  • Caribbean endemic
  • Continent
  • Continent only
  • GC endemic
  • All species
  • Resident
Climate Zone
  • Equatorial (0-10N, Costa Rica / Venezuela)
IUCN Red List
  • Data deficient
  • Listed
  • Not listed
Length Max
  • 7.2
Depth Range Min
  • 6
Depth Range Max
  • 8