Dark-mouth Chimaera
Chimaera buccanigella Clerkin, Ebert & Kemper, 2017
Also calledQuimera-oceânica (por)
First described in: Clerkin, P. J.; Ebert, D. A.; Kemper, J. M. (2017). New species of Chimaera (Chondrichthyes: Holocephali: Chimaeriformes: Chimaeridae) from the Southwestern Indian Ocean. <em>Zootaxa.</em> 4312(1), 1-37.
Descriptions from checklists and floras indexed by GBIF
description
Comparison. Chimaera buccanigella is the fourth Chimaera species known from the Southwestern Indian Ocean (Ebert, 2014) and can be distinguished from other Chimaera species by the following combination of characters: light tan body color, without silver, no defined patterning, spots, reticulations, or mottling; stocky body, short trunk, tapering rapidly into a long tail; long, straight spine, skin not deciduous.
New species of Chimaera (Chondrichthyes: Holocephali: Chimaeriformes: Chimaeridae) from the Southwestern Indian Ocean
description
Description. Morphometric proportions of the holotype and two paratypes are presented in Table 3. A medium-bodied species, head relatively large, head length 28.3 % BDL, and thick, head width at suborbital ridge 14.4 % BDL, and about half (51.5 %) head length, suborbital ridge prominent and well-defined; snout length moderately long, 13.1 % BDL making up almost one-half (46.2 %) head length; snout width at base small, 7 % head length. Trunk slightly compressed, length moderately short, 46.2 % BDL, height 24.5 % BDL, abdomen height 24.7 % BDL, tapers rapidly into long, whip-like tail, tail height 14.6 % BDL, tail length 60.5 % BDL, with short caudal filament. Eyes large, length 9.6 % BDL, about one-third (34.0 %) head length, and ovoid, located in posterior half of head, pre-orbital length 52.2 % head length. Interdorsal space small, 2.7 % BDL, pelvic-anal space large, 45.8 % BDL. Pectoral-pelvic space 34.8 % BDL, 1.2 times head length, and is shorter than pelvic caudal space. Pelvic-caudal space 46.6 % BDL, 1.6 times head length, and is shorter than snout-vent length 67.3 % BDL, 2.4 times head length. Skin smooth without denticles and not deciduous. Pectoral fins relatively broad,
New species of Chimaera (Chondrichthyes: Holocephali: Chimaeriformes: Chimaeridae) from the Southwestern Indian Ocean
description
The species most similar to C. buccanigella, with a conical snout, defined suborbital ridge, large eyes, and long spine not eXceeding first dorsal fin, are C. obscura and C. opalescens. Chimaera obscura differs from C. buccanigella in having a longer dorsal spine, 27.2 % BDL vs 23.4 % BDL; larger fins, first dorsal fin 23.0 % (23.8 %) BDL vs 15.5 % BDL, second dorsal fin anterior height 5.0 % (4.9 %) vs 3.4 % BDL; and smaller eye length 7.3 % (6.1 %) BDL vs 9.6 % BDL. Chimaera opalescens is similar to C. buccanigella in color being beige to tan, but is iridescent before preservation; all around less elongate, trunk length 33.7 ¯ 41.1 % BDL vs 46.2 % BDL, head length 20.1 ¯ 23.8 % BDL vs 28.3 % BDL; features of head less elongate with shorter pre-oral length, 8.1 ¯ 11.5 % BDL vs 14.8 % BDL, prenarial length 2.8 ¯ 4.1 % BDL vs 9.1 % BDL, snout length 4.1 ¯ 6.3 % BDL vs 13.1 % BDL; spine not as robust with ridge to origin 4.9 ̄ 5.9 % BDL vs 3.1 % BDL. Comparison of new Southwestern Indian Ocean Chimaera species. The three new Chimaera species can be separated from each other by a combination of eXternal characteristics. Chimaera willwatchi is large-bodied and distinct in its darker, h
New species of Chimaera (Chondrichthyes: Holocephali: Chimaeriformes: Chimaeridae) from the Southwestern Indian Ocean
diagnosis
Diagnosis. Chimaera buccanigella, sp. nov. is distinguishable from other members of the genus by the following combination of characters: medium-sized species with moderate head length, 28.3 % BDL, eyes very large, 9.6 % BDL, with defined suborbital ridge, relatively long snout measuring 13.1 % BDL; trunk tapering rapidly into long tail, 60.4 % BDL; uniform light tan color, not iridescent, no defined patterning, spots, reticulations, or mottling, dark sooty brown on snout, dark markings in and around mouth (Fig. 17 c); pectoral fins with short anterior margin, 36.6 % BDL, pelvic fins broad, pointed distally, tear-drop shaped, with short anterior margin, 22.1 % BDL; dorsal spine long, thin, and very straight, height of spine not eXceeding height of first dorsal fin, when depressed just reaches origin of second dorsal fin; second dorsal fin not undulating, fins feathery, jagged, and easily frayed. Structure of the NADH 2 gene. Chimaera buccanigella, sp. nov. is distinguishable from its closest congeners, Chimaera obscura Didier et al. 2008, and Chimaera opalescens Luchetti et al. 2001, by a combination of characters: small dorsal spine, generally small fins, small first dorsal fin he
New species of Chimaera (Chondrichthyes: Holocephali: Chimaeriformes: Chimaeridae) from the Southwestern Indian Ocean
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Every page naming Chimaera buccanigella in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 9338744.