Tentacle Shrimpgoby, Cryptocentrus tentaculatus Hoese & Larson 2004


The holotype (male) of the Tentacle Shrimpgoby, Cryptocentrus tentaculatus, from a reef on Field Island, Northern Territory - NTM S.14637-045. Source: Suzanne Horner / Museums and Art Galleries of the Northern Territory, after Hoese & Larson, 2004, Fig. 2. License: All rights reserved

Summary:
An unusual rusty brown shrimpgoby with alternating broad oblique pale and dark bands on the anal fin, and 3-4 dark wavy bands on the caudal fin. Smaller individuals have reddish-brown vertical bands anteriorly on the body separated by whitish interspaces, white mottling on the head, the rear half of body reddish brown, pale bands on the caudal fin, and white pelvic fins.
The Tentacle Shrimpgoby is unique among species of Cryptocentrus in having head papillae on ridged flaps, a tentacle on the top of the eye, and cheek scales.

Cite this page as:
Bray, D.J. 2020, Cryptocentrus tentaculatus in Fishes of Australia, accessed 23 May 2022, https://fishesofaustralia.net.au/home/species/1332

Tentacle Shrimpgoby, Cryptocentrus tentaculatus Hoese & Larson 2004

More Info


Distribution

Endemic to northern Australia, from Walsh Point, admiralty Gulf, The Kimberley, Western Australia, to east of Cape York, Queensland. The species may also occur in Papua New Guinea.
Inhabits silty sand areas and intertidal reefs, where they have been seen coming out of burrows.

Features

Dorsal fin VI + 1,11-13; Anal fin I,9-10; Pectoral fin 14-18; Longitudinal scale count 39-58; Predorsal scale count 19-27; : (1), 22(3), 23(4), 24(7)*,25(8),26(1),27(1); Transverse scale count (TRB) 18-24; Gill rakers (outer face, first arch)  1-3 + 1 + 7-8; Gill rakers (outer face, second arch) 1-3 + 0-1 + 7-9; Caudal fin, segmented rays 8-9/8, branched rays 78/6-8; Vertebrae 11+15=26.
Body robust, depth at anal-fin origin 21.7-23.2% SL. The species is distinctive in having an orbital tentacle, sensory papillae on ridged flaps on the head, transverse rows of preopercular mandibular sensory papillae, and scales on the cheek.

Fisheries

The species is known mostly from specimens taken as bycatch in trawls.

Similar Species

Differs from other species in the genus Cryptocentrus in having an orbital tentacle, sensory papillae on ridged flaps on the head, transverse rows of preopercular mandibular sensory papillae, scales on the cheek, and 11+15 vertebrae.

Etymology

The specific name is from the Latin tentaculatum (= tentacle), in reference to the distinctive tentacle on the dorsal surface of the eye.

Species Citation

Cryptocentrus tentaculatus Hoese & Larson, 2004, The Beagle 20: 169, figs 1-2. Type locality: Reef on south side of Field Island, Northern Territory.

Author

Bray, D.J. 2020

Resources

Atlas of Living Australia

Tentacle Shrimpgoby, Cryptocentrus tentaculatus Hoese & Larson 2004

References


Hoese, D.F. & Larson, H.K. 2004. Description of a new species of Cryptocentrus (Teleostei: Gobiidae) from northern Australia, with comments on the genus. The Beagle, Records of the Museums and Art Galleries of the Northern Territory 20: 167-174 See ref at BHL

Larson, H.K., Williams, R.S. & Hammer, M.P. 2013. An annotated checklist of the fishes of the Northern Territory, Australia. Zootaxa 3696(1): 1-293.

Quick Facts


CAAB Code:37428385

Behaviour:Shares burrows with alpheid shrimps

Depth:2–20 m

Habitat:Silty, sandy bottoms

Max Size:6.5 cm SL

Native:Endemic

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