Ronquils

Ronquils
Bathymaster signatus
Systematics
Spinefish (Acanthopterygii) Perch relatives (Percomorphaceae) Order : Perch-like (Perciformes) Subordination : Cottoidei Partial order : Eel mother relatives (Zoarcales) Family : Ronquils
Scientific name
Bathymasteridae
Jordan & Gilbert , 1883

The family of the Ronquils (Bathymasteridae) belongs to the eel mother relatives (Zoarcales). The seven species from three genera live on the coasts of the North Pacific at depths above 150 meters.

features

The fish have the elongated body typical of eel mother relatives. Their dorsal and anal fin are long with 41 to 48 and 30 to 36 fin rays respectively . The pectoral fins are large and round, the caudal fin is rounded. The lateral line organ is high, close to the back line. The swim bladder is missing. The largest species Bathymaster signatus becomes 38 centimeters long.

Various molecular biological analyzes show that the Bathymasteridae are a paraphyletic group and that the genera Bathymaster and Ronquilus are not closely related to Rathbunella . The Bathymasteridae spine develops in two different patterns. In Bathymaster and Ronquilus , it first develops in the middle caudal region and then grows fore and aft until the spine is complete. In Rathbunella , their growth begins just behind the skull and then continues backwards, which is considered a plesiomorphic (original) feature.

Genera and species

Rathbunella hypoplecta

Ronquilus jordani

• Bathymaster
  • Bathymaster caeruleofasciatus
  • Bathymaster derjugini
  • Bathymaster leurolepis
  • Bathymaster signatus
• Rathbunella
  • Rathbunella alleni
  • Rathbunella hypoplecta
• Ronquilus
  • Ronquilus jordani

literature

• Joseph S. Nelson : Fishes of the World , John Wiley & Sons, 2006, ISBN 0-471-25031-7

Individual evidence

1. ↑ Hilton, EJ, Stevenson, DE & Matarese, AC (2018): Osteology of Ronquilus jordani (Zoarcoidei: Bathymasteridae), with a discussion of the developmental osteology and systematics of bathymasterid fishes. Acta Zoologica, June, 2018. doi.org/10.1111/azo.12261

Web links

Commons : Ronquils (Bathymasteridae)  - Collection of images, videos and audio files

• Ronquils on Fishbase.org (English)