Hydrolagus colliei

Main Authors: Angulo, Arturo, López, Myrna I., Bussing, William A., Murase, Atsunobu
Format: info publication-taxonomictreatment Journal
Terbitan: , 2014
Subjects:
Online Access: https://zenodo.org/record/5248618
Daftar Isi:
  • Hydrolagus colliei (Lay & Bennett 1839) Spotted Ratfish; Quimera manchada (Spanish) (Figure 6, Table 4) Material examined. 3 specimens. UCR 2909–04, 2 males, 1 female, 469–495 mm TL, 265–329 mm BDL; 44.95 Km, 253.73 ° T from Cabo Blanco, Puntarenas, Costa Rica (9o26'16.44" N, 85o29'56.04" W), 560–620 m, 24 November 2010, collected by J.M. Carvajal. Diagnosis. Snout short and bluntly rounded; oral and preopercular lateral line canals not sharing a short common branch from the infraorbital canal; anterior edge of dorsal-fin spine not serrated; anterior and posterior regions of second dorsal-fin considerably taller than middle region; pectoral fins when depressed not reaches beyond to origin of pelvic fins; anal fin absent; caudal-fin axis horizontal with the fin nearly symmetrical, epaxial and hypaxial lobes equal sized; brown or reddish brown coloration with small white spots on head and trunk. Morphometric measurements, expressed as percentage of body length (% BDL) or head length (% HDL), and comparative data are presented in Table 4. ......continued on the next page Distribution. Northeastern Pacific: west coast of North America from southwestern Alaska to Baja California, Mexico, including the Gulf of California (Baldwin 1961, Krupp & Bussing 1995, González-Acosta et al. 1999, Didier & Rosenberger 2002, Ebert 2003, Mecklenburg et al. 2002, Didier et al. 2012), and Costa Rica (this study), at depths between 0 and about 900 m (Didier et al. 2012). Remarks. These specimens represent a south range extension of about 3500 Km on known distribution, as the southernmost record of the spotted Ratfish was on Punta Prieta off the outer coast of the Baja California Peninsula, Mexico (26°59’N, 114°02’W) (González-Acosta et al. 1999, Ruiz-Campos et al. 2010).
  • Published as part of Angulo, Arturo, López, Myrna I., Bussing, William A. & Murase, Atsunobu, 2014, Records of chimaeroid fishes (Holocephali: Chimaeriformes) from the Pacific coast of Costa Rica, with the description of a new species of Chimera (Chimaeridae) from the eastern Pacific Ocean, pp. 554-574 in Zootaxa 3861 (6) on pages 566-568, DOI: 10.11646/zootaxa.3861.6.3, http://zenodo.org/record/5247997