Mustelus schmitti

Springer, 1939

Narrownose smooth-hound
Classification: Elasmobranchii Carcharhiniformes Triakidae

Reference of the original description
Springer, S. (1939)
Two new Atlantic species of dog sharks, with a key to the species of Mustelus. Proceedings of the United States National Museum, 86(3058), 461–468

Image of the original description
No image in first description.

Synonyms / new combinations and misspellings
Mustelus schimitti

Mustelus schmitti
Holotype: USNM: 106640 (old: 87680) ; Paratype: USNM: 87782; USNM: 87680; USNM: 55582;

Description :

Citation: Mustelus schmitti Springer, 1939: In: Database of modern sharks, rays and chimaeras,, World Wide Web electronic publication, Version 07/2024

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Mustelus schmitti Springer, 1939, © Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
Common names
spa Gatuso, spa Gatuzo, fra \(T\) Emissole gatuso, eng Narrownose smooth hound, eng Narrownose smooth-hound, por Canejo, por Cação, por Cação-bico-doce, por Cação-da-Patagónia

Short Description
Original daiagonis after Springer [3013]: Similar in form to Mustelus canis but males reaching maturity at a small size (600 mm or less). Snout narrower. Fins broad; lower lobe of caudal not strongly developed, not acute; origin of the first dorsal in advance of the inner angle of the pectoral. Eyes smaller than in M. canis (horizontal diameter of orbit 2.5 percent of total length in average of five specimens as compared with 3.1 percent average for M. canis of comparable size); horizontal diameter of orbit greater than distance between the nostrils. Mouth broadly arched and rounded anteriorly in the adults; outer labial fold longer. Teeth paved, crowns not elevated in adults; accessory cusps present on the teeth of the young specimen, not on the adults examined. Dermal denticles similar in structure on the fiat surfaces of the body, typical 4-ridged, mth ridges reaching about two-thirds of the distance to the posterior apex. Color uniform gray, without Hght or dark spots or bands.

Southwest Atlantic: southern Brazil to northern Argentina.

Human uses
fisheries: highly commercial; price category: medium; price reliability: reliable: based on ex-vessel price for this species

Ovoviviparous, embryos feed solely on yolk [733]. Distinct pairing with embrace [17086].

Size / Weight / Age
92.0 cm TL (male/unsexed; [19579])

demersal; oceanodromous [17660]; marine; depth range 60 - 195 m [1103]

shark-references Species-ID=3821;

Parasites (arranged by Jürgen Pollerspöck)
  • Achtheinus oblongus Wilson, 1908 [15942]
  • Achtheinus pinguis Wilson, 1912 [7378]
  • Lernaeopoda galei Krøyer, 1837 [15942]
  • Nesippus orientalis Heller, 1868 [15942]