A new genus and species of catshark (Carcharhiniformes: Scyliorhinidae) from eastern Indonesia

Zootaxa. 2019 Nov 4;4691(5):zootaxa.4691.5.2. doi: 10.11646/zootaxa.4691.5.2.

Abstract

A new genus and species of catshark is described based on a single specimen collected off Ambon in the Maluku Islands of eastern Indonesia. Akheilos suwartanai belongs to the subfamily Schroederichthyinae which differs from the other catsharks in a combination of: similar sized dorsal fins, supraorbital crests present, pseudosiphon present on claspers, broad subocular ridges under eyes, posterior nasal flaps present, tips of rostral cartilage fused into a rostral node. It represents the first record of this subfamily outside of the Americas. Akheilos differs from the other genus in the subfamily, Schroederichthys in a combination of: clasper groove not fused dorsally, ventral lobe of caudal fin produced, more intestinal valve turns, anal fin slightly larger than second dorsal fin, and in colour pattern.

Keywords: Pisces, Schroederichthys, Schroederichthyinae, new genus, new species, catshark, Indonesia.

MeSH terms

  • Animals
  • Color
  • Elasmobranchii*
  • Indonesia
  • Islands