Overview

Comprehensive Description

Biology

This species appears to be extremely cryptic, collected five times only in a total of 75 general ichthyocide collections, with 4 of those collections from a specific habitat, shallow patch reefs (0-4.6 m) with good circulation. The sixth collection from that specific habitat only occurred after a number of futile attempts to collect more individuals for photographs. This particular species was reported to have been at Haleiwa, O’ahu, living on Porites compressa (Ref. 58271). Benthic (Ref. 58302).
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Distribution

Hawaiian Islands.
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Eastern Central Pacific: Hawaii.
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Physical Description

Morphology

Dorsal spines (total): 7; Dorsal soft rays (total): 7 - 8; Analspines: 1; Analsoft rays: 7 - 8
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Size

Max. size

2.0 cm TL (male/unsexed; (Ref. 58271))
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Diagnostic Description

This small species has the following characteristics: a broad head and moderate snout, eyes set dorsolaterally; second dorsal- and anal-fin rays I,7-I,8 (usually I,8); pectoral-fin rays 17-18 (usually 17); longitudinal scales 24; TRB 6; nape naked; pelvic fin rounded, cup-like, with fleshy, rounded pelvic spine lobes; tongue round; lower gill opening margin attached at level of preopercular margin; gill membranes broadly joined to isthmus; live color translucent with orange markings and some melanophores (Ref. 58271).
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Type Information

Paratype for Pleurosicya larsonae Greenfield & Randall
Catalog Number: USNM 375434
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1991
Locality: Hawaiian Islands, Oahu, Kaneohe Bay, patch reef at Crashboat Channel., Oahu, Hawaii, United States, Hawaiian Islands, Pacific
Depth (m): 4.6
  • Paratype: Greenfield, D. W. & Randall, J. E. 2004. Proceedings of the California Academy of Sciences, Fourth Series. 55 (27): 534, Figs. 32, 71-72.
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Ecology

Habitat

Environment

reef-associated; marine; depth range 0 - 6 m (Ref. 58271)
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Conservation

Threats

Not Evaluated
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