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Peppered catshark
The peppered catshark (''Galeus piperatus'') is a common but little-known species of catshark, part of the family Scyliorhinidae, inhabiting depths of in the northern Gulf of California. It is found on or near the ocean floor, and conducts seasonal migrations, spending winter in deeper water. Reaching a length of , this species has a slender grayish body with a fine covering of black dots. On the dorsal edge of its caudal fin is a prominent crest of enlarged dermal denticles. It is oviparous, with the reproductive period probably lasting from May to September. The International Union for Conservation of Nature (IUCN) has listed the peppered catshark under Least Concern, as it faces no significant threats from human activity.
==Taxonomy==
The peppered catshark was described by Stewart Springer and Mary Wagner in a 1966 issue of ''Los Angeles County Museum Contributions in Science''; the specific epithet ''piperatus'' is derived from the Latin ''piper'', meaning "pepper". The type specimen is an adult female long, collected halfway between Tiburón Island and Isla Ángel de la Guarda. The peppered catshark is barely distinguishable from the ''G. arae'' species complex of the western Atlantic; its anomalous geographical distribution is likely a product of vicariance stemming from the formation of the Isthmus of Panama (''c.'' 3 Ma).
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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