Paraleptopecten velero (Hertlein, 1935)
HERTLEIN, L. G. 1935. The Templeton Crocker Expedition of the California Academy of Sciences, 1932. The recent Pectinidae. Proceedings of the California Academy of Sciences [4th Series], 21 (25): 301-328, pls. 18-19. [p. 316, pl. 19, figs. 13-14]
1935 Pecten (Leptopecten) velero Hertlein, 1935
L. G. Hertlein, 1935, plate 19.
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«The type is a left valve with 16 strong ribs, of which every third rib is higher than the intervening ones; the two ribs on the margins are a little stronger than those on the middle; strong imbricating lamellae cross the ribs and interspaces and are especially prominent on the stronger ribs. The anterior ear is ornamented by about six to seven imbricated riblets and the posterior ear shows about five such riblets, The exterior of the shell is colored pink with whitish and brownish spots. The hinge line has transverse striations; and the ribs are shown on the interior of the shell by strong ridges and hollows. Other specimens sometimes have pairs of raised ribs instead of only one. Type, altitude approximately 6.4 mm.; length of hinge line approximately 6,2 mm.
Range: Bahia Honda, Veragua, Panama; Mazatlan, Mexico; and Maria Madre Island, Tres Marias Group, Mexico. Holotype: Left valve No. 6857 (Mus. Calif. Acad. Sci. Paleo.); paratype, left valve No. 6886, and plesiotype, right valve No. 6887 (Mus. Calif. Acad. Sci. Paleo. type coll.), Bahia Honda, Veragua, Panama, in three to nine fathoms, G. Allan Hancock Expedition; L. G. Hertlein, collector. P. velero is not present in the collection made by the Templeton Crocker Expedition, but is recorded here as a new species. The new species difiers from P. latiauratus delosi Arnold, in the character of the ribs, of which every third one is raised and occasionally a pair is raised. Another left valve and a right valve, slightly worn, occurred with the type at Bahia Honda, Panama. The right valve has about 16 ribs, every third one is slightly raised, and it is presumably the right valve of the new species. Its general appearance is considerably like P. latiauratus Conrad, Recent west American species, and P. ischnon Pilsbry & Johnson [39] from the Miocene of Santo Domingo. Several specimens of P. velero were collected by the author at Loc. 27,223 (C. A. S.), Mazatlan, Mexico. One left valve was collected by G. D. Hanna & E. K. Jordan at Loc. 23,779 (C.A. S.), Maria Madre Island, Tres Marias Group, Mexico, in ten fathoms. This new species is named for Captain G. Allan Hancock's yacht, Velero III.» LEO GEORGE HERTLEIN, 1935
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«Paraleptopecten velero (Hertlein, 1935). Type locality: 3-9 fathoms [= 5-16 m], Bahía Honda, Veragua, Panama. Geographic range: extant specimens occur from Las Animas Bay, Gulf of California, to Puna, Gulf of Guayaquil, Ecuador (Grau, 1959: 115); fossil specimens have been reported from the Imperial Formation in Riverside County, California (Powell, 1986: 102). Age: Pliocene to present. Habitat: "Recorded in 3 to 40 fathoms [= 5 to 73 m] . . . Found on rock, gravelly sand, sand, and mud bottoms" (Grau, 1959: 115).»
WALLER, T. R. 2011. Neogene Paleontology of the Northern Dominican Republic. 24. Propeamussiidae and Pectinidae (Mollusca: Bivalvia: Pectinoidea) of the Cibao Valley. Bulletins of American Paleontology, 381: 1-197, pls. 1-18. [p. 139]
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Leptopecten velero (Hertlein, 1935); B. K. Raines & G. T. Poppe, 2006, A Conchological Iconography, The Family Pectinidae, plates 285, figures 1a-1c.
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«The shell is small, thin, flattened, the left valve noticeably inequilateral, the right valve less so, and sculptured with low, rounded or flattened smooth or slightly scaly ribs, generally about 15 in the left valve, and about 13 in the right; in the left valve, usually every third rib is somewhat larger than the others, sometimes also in the right. Spaces between the ribs on the umbones are as wide as the ribs and usually strongly sculptured with coarse cross threads; this sculpture may extend over most of the surface but usually the interspaces ventrally are smooth or nearly so. Ears are large, the anterior, right ear elongated and provided with a deep, byssal notch bordered below by small pectinate teeth. Ears are usually well sculptured, the right anterior ear with strong ribs. Color is usually a purplish red, the left valve darker and often maculated, the right valve lighter, sometimes white or yellow. Hinge line long, minutely wrinkled or striated.
Length 11.4 mm., height 11.3 mm. left valve. Length 11.2 mm., height 11.3 mm. right valve. A relatively small species distinguished from the young of A. tumbezensis by its thinner shell and stronger sculpture, the umbonal ribbed interspaces are heavily cross-threaded. Widely distributed but easily overlooked because of its small size. I am indebted to Dr. L. G. Hertlein of the California Academy of Sciences for the opportunity of examining typical specimens of this species. Range — Mexico to northern Peru. Mexico, El Salvador, and Nicaragua, see Hertlein and Strong; Panama: Bahia Honda (Hertlein and Strong); Concepcion beach near Las Tablas. Peru: Mancora.» OLSSON, A. A. 1961. Mollusks of the Tropical Eastern Pacific, particularly from the southern half of the Panamic-Pacific Faunal Province (Panama to Peru). Panamic-Pacific Pelecypoda. 574 p., pls. 1-86. Paleontological Research Institution. New York , USA. [p. 165]
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Aequipecten (Leptopecten) velero (Hertlein); A. A. Olsson, 1961, Mollusks of the Tropical Eastern Pacific, plates 21, figures 1, 1a.
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«Additional descriptive notes; The right valve is moderately convex, the left flattish. Every third rib of the left valve is angular and has prominent concentric lamellae, the other ribs being rounded and much smoother; one or two riblets are present in the interspaces. On the right valve a low central riblet (rarely two) occurs between the major ribs, both the ribs and interspaces being concentrically lamellated; a well defined
byssal notch is present and a ctenolium of five teeth; the anterior auricle has five imbricated riblets, the posterior five or six. The left valve is pink, red, or red-brown, with white and brown markings; the right valve is either much paler than the left or white. Fully grown specimens attain all altitude of 16 or 17 mm. Geographical range: Las Animas Bay, Gulf of California, to Puna, Gulf of Guayaquil, Ecuador. Mazatlan, Mexico, was the previously recorded northern limit, but specimens in the author's collection from Las Animas Bay extend the range by about 570 miles. Geochronological range: Reported only from the Recent. Bathymetric range: Recorded in 3 to 40 fathoms. Ecological data: Found on rock, gravelly sand, sand, and mud bottoms.» GRAU, G. 1959. Pectinidae of the eastern Pacific. Allan Hancock Pacific Expeditions, 23: i-viii, 1-308, pls. 1-57. University of Southern California Press. Los Angeles, California. [p. 115]
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Chlamys (Leptopecten) velero (Hertlein) 1935; G. Grau, 1958, Pectinidae of the eastern Pacific, plate 37.
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