Home                              MIDGLEY'S CARP GUDGEON
                                                                                     Hypseleotris sp. 4 (undescribed)

Named after Stephen Hamar Midgley who worked for the Australian Fisheries in the 1970's and 80's. Born Wynum, Queensland Dec. 1918.
1939-45 A.I.F. Captain 2/5 Field Regiment.
1968 Churchill Fellowship to study Nile Perch in Uganda.
1984 Order of Australia [OM] for studies of native freshwater fishes.
1994 Doctor of Science honoris causa: U.Q. For outstanding contributions in the fields of fish biology and ecology.5


Freshwater Fishes of Australia A tiny fish with a very compressed head and body. First dorsal fin (VI-VIII) originates behind level of pelvic fin bases, lower than 2nd dorsal and has a rounded margin. Second dorsal (I, 11-13 originates above vent, anterior rays slightly elevated, posterior rays short in females and elongate in males. Anal fin 1,11-13. Tail truncate to slightly rounded (15 segmented caudal rays). Pectorals with 14-16 rays. Fourth pelvic ray longest, 3rd ray longer than 5th, giving fin an acutely pointed margin. Pelvic fins reach halfway or more of distance to vent. Body covered with ciliated scales (31-36 along side, usually 31-34, 13-20 predorsal scales). Top of head covered with small cycloid scales to above posterior margin of eyes. Sides of head, pectoral bases, breast and midline of belly covered with small cycloid scales; no scales on snout. No head pores; 29-30 vertebrae; 11-13 gill rakers.
Sexual dimorphism in males the 1st dorsal is only slightly rounded and long-based, reaching to base of 2nd dorsal; the fin in females with a rounded margin and widely separated from 2nd dorsal. Mature males develop a distinct hump extending from about front of eyes back to 1st dorsal fin; also have the posterior dorsal and anal rays elongated. Males typically grow slightly larger than females. As in all species of Hypseleotris, the urinogenital papilla margin is smooth in males and fringed in females.

Midgley's Carp Gudgeon, Hypseleotris.
Varies considerably with size, sex, locality and season. Head and body vary from pale grey to brown; a distinct black spot on upper third of pectoral base, scales edged in black. Often charcoal-grey vertical bands on sides; no black spots or bars on caudal peduncle. Belly distinctly silvery in life, and has black along or to sides of midline. First dorsal has a basal dusky stripe, above which is a wider reddish orange stripe. Just above midline of fin another dusky stripe bordered above by a white marginal stripe. Second dorsal with a similar orange stripe, but dusky bands above and below nearly as wide as orange band. A thin sub-marginal orange stripe present, becoming pearly white posteriorly. Anal fin very like 2nd dorsal, but bands of colour less distinct. Tail fin with basal half yellowish or dusky. Pelvics and pectorals clear. Fin colours most marked in breeding males and indistinct in females and young males. This colour description is based on samples from one area, and fish from others may display slightly different colour patterns.

Reaches 60mm.

Distribution of Midgley's Carp Gudgeon. Distribution
Occurs in inland drainages of South Australia, New South Wales and Southern Queensland
and central Queensland.

Conservation status Common across range.

Natural history Often found around vegetation, but also schools in caves or other sheltered areas feeds on aquatic crustaceans, particularly clado-cerans and copepods.

Utility Has considerable potential as an aquarium fish.

Similar species Can be confused with other species of Hypseleotris from south-eastern
Australia;  frequently confused with western carp gudgeon.

Other names Common: none. Scientific: none4.

Hamar Midgley

LAKE'S CARP GUDGEONHypseleotris sp. 5 (undescribed)
Very similar to Midgley’s carp gudgeon Differing in only a few features, notably the lack of scales on the nape, breast and belly; also sometimes a naked strip under 1st dorsal fin (31-36 lateral scales)3. Lake and Midgley collaborated in their work.

Arius midgleyi
A Salmon or fork-tailed catfish is also named after him Arius midgleyi1. This is one of the larger Australian species of catfish and along with other catfish is marketed under the name of  "silver cobbler" and "golden cobbler".  It is found in the east coast rivers of southern Queensland and north and central N.S.W.

                                              James Midgley ========= m:17 Jan 1861 =========Mary Elizabeth Brown
                                          b. McCleay River, NSW                      |
   |                 |                  |                  |                 |                |                  |                  |                  |                   |                   |                  |                   |    
 1                 2                 3                 4                5              6                 7                 8                9                10                11               12                13
                                                                                                       Stephen H.                                                                                                     Edward

A family tree has been constructed by Clyde Love, grandson of Edward.5

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S.H. Midgley 1. S.H.Midgley & J.H. Lake, Reproduction of Freshwater Ariidae in Australia, Australian Journal of Science 1970, 32 (11): 441.
2. S.H. Midgley & M.A. Rimmer, Techniques for hatching eggs and rearing larvae of the Australian mouthbrooding catfishes, Arius graeffei and Arius leptaspis (Ariidae), Aquaculture, 1985, 44: 333-337
3. Freshwater Fishes of South-Eastern Australia Ed. by Robert McDowall, Reed, 1996.
4. Freshwater Fishes of Australia, G.R. Allen, Neptune City, 1989.
5. Email from Stephen Midgley, son of  Stephen, Hamar Midgley.

© Copyright Tim Midgley 2000, links revised Jan 2024.