Craterocephalus gloveri Crowley & Ivantsoff, 1990
Glovers hardyhead
No Picture Available

Family:  Atherinidae (Silversides), subfamily: Craterocephalinae
Max. size:  5.2 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Oceania: Dalhousie Springs in Australia.
Diagnosis:  Distinguished from other hardyheads by a combination of the following characters (expressed in mean): greatest body depth (mean 4.9), least body depth (mean 10.3) both in SL; eye 3.0 in head; midlateral scale count (mean 31.4). Osteologically diagnosed by the combination of the following: dentition, shape of urohyal, medial wing of pelvic bone and premaxilla. Differs further in lacking ventral processes on fifth ceratobranchial for attachment of pharyngoclavicularis internus muscle (Ref. 26685). Description: first dorsal fin spines 6, 5-6; second dorsal fin Ii5, Ii5-6; anal fin Ii7, Ii6-7; pectoral fin Ii12, Ii10-13 (Ref. 26685).
Biology:  Inhabits warm water (>20°C) of spring-fed pools. Upper temperature tolerance is probably not as high as C. dalhousiensis. Omnivorous. Only co-occurs with C. dalhousiensis in one spring (Ref. 44894).
IUCN Red List Status: Vulnerable (VU); Date assessed: 01 August 1996 (D2) Ref. (124695)
Threat to humans:  harmless
Country info:   
 

Entered by: Palomares, Maria Lourdes D. - 06.06.94
Modified by: Ortañez, Auda Kareen - 11.07.06

Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.


Page created by Jen, 05.08.02, php script by kbanasihan 06/09/2010 ,  last modified by sortiz, 10/02/17