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Etmopterus schmidti
Dolganov, 1986
Classification: Elasmobranchii Squaliformes Etmopteridae
Reference of the original description
Description of new species of sharks of the family Squalidae (Squaliformes) from the north-western part of the Pacific Ocean with remarks of validity of Etmopterus frontimaculatus. Zoologichesky Zhurnal, 65(1), 149–153
Description of new species of sharks of the family Squalidae (Squaliformes) from the north-western part of the Pacific Ocean with remarks of validity of Etmopterus frontimaculatus. Zoologichesky Zhurnal, 65(1), 149–153
Image of the original description
Etmopterus schmidti Dolganov, 1986; in: Dolganov, V.N. (1986) Description of new species of sharks of the family Squalidae (Squaliformes) from the north-western part of the Pacific Ocean with remarks of validity of Etmopterus frontimaculatus. Zoologichesky Zhurnal, 65 (1): 149-153
Etmopterus schmidti Dolganov, 1986; in: Dolganov, V.N. (1986) Description of new species of sharks of the family Squalidae (Squaliformes) from the north-western part of the Pacific Ocean with remarks of validity of Etmopterus frontimaculatus. Zoologichesky Zhurnal, 65 (1): 149-153
Images of types
Description :
Citation: Etmopterus schmidti Dolganov, 1986: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 10/2025
Please send your images of "Etmopterus schmidti" to info@shark-references.com
Etmopterus schmidti Dolganov, 1986, fresh specimen, EBFS-NG 00134, mature female 333 mm TL, off Daxi, northeastern Taiwan, scale bar=20 mm © Ng et al. 2025
Etmopterus schmidti Dolganov, 1986, fresh specimen, EBFS-NG 00134, mature female 333 mm TL, off Daxi, northeastern Taiwan, scale bar=20 mm © Ng et al. 2025
Short Description
A moderately small Etmopterus of the E. lucifer group showing typically elongated anterior and posterior branches of lateral flank markings. It differs from other members by the following combination of characters: hook-like dermal denticles not overlapping each other, in well-defined rows; the origin of second dorsal fin well posterior to flank-marking base origin; infracaudal marking not connected with caudal-fin base marking through luminous lines; posterior caudal-fin marking long, length 20.3–34.4% caudal-fin length; caudal-fin upper lobe translucent; caudal-base marking bifurcated after caudal-fin origin; and ventral pectoral marking curved [34277].
A moderately small Etmopterus of the E. lucifer group showing typically elongated anterior and posterior branches of lateral flank markings. It differs from other members by the following combination of characters: hook-like dermal denticles not overlapping each other, in well-defined rows; the origin of second dorsal fin well posterior to flank-marking base origin; infracaudal marking not connected with caudal-fin base marking through luminous lines; posterior caudal-fin marking long, length 20.3–34.4% caudal-fin length; caudal-fin upper lobe translucent; caudal-base marking bifurcated after caudal-fin origin; and ventral pectoral marking curved [34277].
Distribution
Northwestern Pacific, from warm temperate waters off Japan to northern South China Sea [34277].
Northwestern Pacific, from warm temperate waters off Japan to northern South China Sea [34277].
Size / Weight / Age
Up to 368 mm TL and 330 mm TL for females and males (Dolganov 1986), respectively. Smallest mature female 263 mm TL and male 272 mm TL, respectively [34277].
Up to 368 mm TL and 330 mm TL for females and males (Dolganov 1986), respectively. Smallest mature female 263 mm TL and male 272 mm TL, respectively [34277].
Dentition
Teeth dissimilar in upper and lower jaw, having ontogenetic change and sexual dimorphism, as in the congeners; multicuspid upper teeth in three functional series; unicuspid lower teeth in three series, one functional; lower teeth blade-like, strongly oblique. No symphyseal and intermediate teeth. Upper teeth cusp rather thick; immature males and both immature and mature females with 1–2 cusplets on each side of the upper teeth (rarely 3), while mature males having 3–4 cusplets; longest cusplet length about two-third of the cusp in mature individuals; cusp and cusplets of upper teeth slender, lower teeth of mature individuals not erected. Tooth count of upper jaw 24–30 (28), lower jaw 32–42 (38), total count 57–70 (66). [34277].
Teeth dissimilar in upper and lower jaw, having ontogenetic change and sexual dimorphism, as in the congeners; multicuspid upper teeth in three functional series; unicuspid lower teeth in three series, one functional; lower teeth blade-like, strongly oblique. No symphyseal and intermediate teeth. Upper teeth cusp rather thick; immature males and both immature and mature females with 1–2 cusplets on each side of the upper teeth (rarely 3), while mature males having 3–4 cusplets; longest cusplet length about two-third of the cusp in mature individuals; cusp and cusplets of upper teeth slender, lower teeth of mature individuals not erected. Tooth count of upper jaw 24–30 (28), lower jaw 32–42 (38), total count 57–70 (66). [34277].
Remarks
shark-references Species-ID=9676;
shark-references Species-ID=9676;
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