Catalog of Fishes
literature references
FishBase
NCBI GenBank
Squatina mapama
Long, Ebert, Tavera, Arturo Acero & Robertson, 2021
Classification: Elasmobranchii Squatiniformes Squatinidae
Reference of the original description
Squatina mapama n. sp., a new cryptic species of angel shark (Elasmobranchii: Squatinidae) from the southwestern Caribbean Sea. Journal of the Ocean Science Foundation, 38, 113–130
Squatina mapama n. sp., a new cryptic species of angel shark (Elasmobranchii: Squatinidae) from the southwestern Caribbean Sea. Journal of the Ocean Science Foundation, 38, 113–130
Image of the original description
Squatina mapama Long, Ebert, Tavera, Arturo Acero & Robertson, 2021, fresh holotype, USNM 400784, 400 mm TL male, Caribbean Panama (D.R. Robertson)
Squatina mapama Long, Ebert, Tavera, Arturo Acero & Robertson, 2021, fresh holotype, USNM 400784, 400 mm TL male, Caribbean Panama (D.R. Robertson)
Images of types
Description :
Citation: Squatina mapama Long, Ebert, Tavera, Arturo Acero & Robertson, 2021: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 11/2024
Please send your images of "Squatina mapama" to info@shark-references.com
Squatina mapama Long, Ebert, Tavera, Arturo Acero & Robertson, 2021, preserved holotype, USNM 400784, 400 mm TL immature male (A & B) and preserved paratype, USNM 400796, 325 mm TL immature male (C & D), Caribbean Panama (D.J. Long).
Squatina mapama Long, Ebert, Tavera, Arturo Acero & Robertson, 2021, preserved holotype, USNM 400784, 400 mm TL immature male (A & B) and preserved paratype, USNM 400796, 325 mm TL immature male (C & D), Caribbean Panama (D.J. Long).
Common names
angelote de cresta pequeña, 
Small-crested Angelshark
angelote de cresta pequeña, Small-crested Angelshark
Short Description
Original diagnosis of Long, Ebert, Tavera, Arturo Acero & Robertson, 2021 [30382]: A Squatina species with a combination of: a single row of slightly enlarged dermal denticles along dorsal midline extending between level just anterior of posterior insertion of pelvic fins and anterior base of first dorsal fin and continuing rearwards along dorsal ridge of tail between first and second dorsal fins; a few large denticles on top of head; nasal flap squared with a fine fringe on ventral edge; two short lateral barbels bluntly rounded also with a fine fringed margin; males with a dorsal color pattern of small, scattered, dark spots distributed over a uniform light-brown background; pectoral-fin span 52.0–58.1% TL; pelvic-fin span 30.7–31.0 % TL; pre-pectoral-fin length 19.4–19.8% TL; trunk width 18.1–19.5% TL; head length 16.5–17.5% TL; spiracle length 2.2–2.3% TL; eye-to-spiracle length 2.2–5.0 % TL; mouth width 10.5–12.1% TL; nostril width 1.6–2.3% TL; snout-to-pectoral distance 19.4–19.8%; spiracle width 2.2–2.3% TL; pectoral-fin inner margins 17.5–18.3%.
Original diagnosis of Long, Ebert, Tavera, Arturo Acero & Robertson, 2021 [30382]: A Squatina species with a combination of: a single row of slightly enlarged dermal denticles along dorsal midline extending between level just anterior of posterior insertion of pelvic fins and anterior base of first dorsal fin and continuing rearwards along dorsal ridge of tail between first and second dorsal fins; a few large denticles on top of head; nasal flap squared with a fine fringe on ventral edge; two short lateral barbels bluntly rounded also with a fine fringed margin; males with a dorsal color pattern of small, scattered, dark spots distributed over a uniform light-brown background; pectoral-fin span 52.0–58.1% TL; pelvic-fin span 30.7–31.0 % TL; pre-pectoral-fin length 19.4–19.8% TL; trunk width 18.1–19.5% TL; head length 16.5–17.5% TL; spiracle length 2.2–2.3% TL; eye-to-spiracle length 2.2–5.0 % TL; mouth width 10.5–12.1% TL; nostril width 1.6–2.3% TL; snout-to-pectoral distance 19.4–19.8%; spiracle width 2.2–2.3% TL; pectoral-fin inner margins 17.5–18.3%.
Dentition
Dentition is typical for Squatina (teeth show little variation between species): tooth bases are labiolingually narrow and mesodistally wide, teeth have short, narrow, vertical, awl-like cusps with a sharp apex recurved lingually, minor cutting edges lack serrations and have extremely reduced mesial and distal blades; dentition shows monognathic heterodonty with anterior teeth having slightly more erect cusps, with a gradual inclination of cusps in teeth distally; little perceptible dignathic heterodonty between teeth in upper and lower jaws. Both type specimens have 14 teeth in left and right upper and lower jaws with 2 or 3 functional series in each tooth row [30382]
Dentition is typical for Squatina (teeth show little variation between species): tooth bases are labiolingually narrow and mesodistally wide, teeth have short, narrow, vertical, awl-like cusps with a sharp apex recurved lingually, minor cutting edges lack serrations and have extremely reduced mesial and distal blades; dentition shows monognathic heterodonty with anterior teeth having slightly more erect cusps, with a gradual inclination of cusps in teeth distally; little perceptible dignathic heterodonty between teeth in upper and lower jaws. Both type specimens have 14 teeth in left and right upper and lower jaws with 2 or 3 functional series in each tooth row [30382]
Remarks
shark-references Species-ID=16211;
shark-references Species-ID=16211;
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