Shorefishes of the Eastern Pacific online information system

Español  Contact

Species: Encheliophis vermicularis, Finless pearlfish, Worm pearlfish

All Families:   All Genera:   All Species:

tail black
in sea slugs
no gill rakers
no canines front either jaws
no pectorals

Encheliophis vermicularis Müller, 1842

Finless pearlfish, Worm pearlfish

Slender, short body, long slender tail; top margin of top jaw bone covered by skin, bound to side of head; no large canines at front of top and bottom jaws; upper jaw with row of strong curved teeth outside inner row of conical teeth; lower jaw with single row of conical teeth; no fleshy flap at snout tip; gill opening restricted to lower side, gill membranes united below; no developed gill rakers; dorsal and anal fins low, confluent with tail fin; dorsal origin well behind origin of anal; pectoral fins absent; no pelvic fins; anus and anal fin origin just behind operculum.

Dusky pink, shading to blackish purple grey on tail; lower body silver; iris grey-green.

Size: 15 cm.

Habitat: lives in the guts of Sea cucumbers, including Isostichopus fuscus.

Depth: 0-30 m?

An Indo-Pacific species; in our region found from the western Gulf of California to Ecuador, the Galapagos and Cocos.

High Resolution Map Download

Species Data Create Report Export as Word File Export as Excel File
  • Marine
  • Marine Only
  • Inshore Only
  • Inshore
Water Column Position
  • Bottom
  • Bottom only
  • Bivalves & sea cucumbers
  • Mud
  • Sand & gravel
  • Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
  • Soft bottom only
FishBase Habitat
  • Demersal
Feeding Group
  • No Data
  • Parasitic
  • Data
  • Sea-stars/cucumbers/urchins
Egg Type
  • Pelagic
  • Pelagic larva
  • No data
Global Endemism
  • West + East Pacific (but not Central)
  • All species
  • TEP non-endemic
  • Indo-Pacific only (Indian + Pacific Oceans)
  • "Transpacific" (East + Central &/or West Pacific)
Regional Endemism
  • Eastern Pacific non-endemic
  • Continent + Island (s)
  • Continent
  • Island (s)
  • Tropical Eastern Pacific (TEP) non-endemic
  • All species
  • Resident
Climate Zone
  • Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
  • Northern Subtropical (Cortez Province + Sinaloan Gap)
  • Northern Tropical (Mexican Province to Nicaragua + Revillagigedos)
  • North Temperate (Californian Province &/or Northern Gulf of California)
IUCN Red List
  • Not evaluated / Listed
  • Not listed
Length Max
  • 15
Depth Range Min
  • 0
Depth Range Max
  • 30