Amphiura carchara H.L. Clark, 1911

Granja-Fernández, Rebeca, Hendrickx, Michel E., Rangel-Solís, Pedro Diego & López-Pérez, Andrés, 2023, Deep-sea Ophiuroidea (Echinodermata) collected during the TALUD cruises in western Mexico, Zootaxa 5259 (1), pp. 1-71 : 48-50

publication ID

https://doi.org/ 10.11646/zootaxa.5259.1.1

publication LSID

lsid:zoobank.org:pub:4306F52E-FD24-45B0-B307-66B71173D805

DOI

https://doi.org/10.5281/zenodo.7798758

persistent identifier

https://treatment.plazi.org/id/03AB87FA-FF8E-FFE4-FF7B-FA9DFE9CFE52

treatment provided by

Plazi

scientific name

Amphiura carchara H.L. Clark, 1911
status

 

Amphiura carchara H.L. Clark, 1911 View in CoL

Fig. 14G‒L View FIGURE 14

Amphiura carchara H.L. Clark, 1911: 142‒143 View in CoL , fig. 55.— Martynov 2010: figs. 15m, 31f.

Pandelia carchara . Fell 1962: 10.— Kyte 1969a: 1737.

Material examined. 31 individuals at three stations. TALUD XVIB, Sta. 22, 1 ind. (ICML-EMU-11149-A) and 4 ind. (ICML-EMU-11149-B); Sta. 26, 1 ind. (ICML-EMU-11149-C); Sta. 27, 10 ind. (ICML-EMU-11150) and 15 ind. (ICML-EMU-11667).

Comparative material. Holotype: USNM 25594 About USNM . Paratypes, 158 ind.: MCZ OPH-3140 , MCZ OPH-3141 , MCZ OPH-3370 , USNM 25993 About USNM , USNM 26053 About USNM , USNM 26114 About USNM , USNM 26115 About USNM , USNM 26213 About USNM , USNM 26615 About USNM , USNM 27017 About USNM , USNM 27018 About USNM , USNM 27054 About USNM , USNM 32377 About USNM , USNM 33639 About USNM (Supplementary file 2) .

Description (ICML-EMU-11667). DD = 7 mm. Disc rounded. Dorsal disc covered by imbricated scales. Primary plates oval, separated from each other by scales. RS triangular with rounded edges, in contact only distally, the rest separated by scales ( Fig. 14G View FIGURE 14 ). Ventral interradii covered by integument, distally with a fold of scales ( Fig. 14H View FIGURE 14 ). OSh broader than long, bell-shaped with rounded edges, a distal lobe. Madreporite not evident. AdSh triangular, wider distally, meeting in front of OSh or separated. Jaws bearing three oral papillae at each side; AdShSp elongated, pointed; BSc elongated, pointed; IPa quadrangular with rounded edges, strong. vT elongated with straight edge ( Fig. 14I View FIGURE 14 ). Arms slender. DAP broader than long, fan-shaped with rounded edges, contiguous ( Fig. 14J View FIGURE 14 ). VAP longer than broad, pentagonal, slightly separated from each other. LAP with three ArSp, small (approximately 1.5 arm segment in length), pointed, middle ArSp stronger than rest. Tentacle pores with one oval TSc ( Fig. 14K View FIGURE 14 ). Color pattern dorsally and ventrally beige-whitish (ethanol preservation) ( Fig. 14G‒L View FIGURE 14 ).

Habitat and distribution. Bering Sea, Gulf of Alaska, Washington, USA, and northwestern Mexico (H.L. Clark 1911; Granja-Fernández et al. 2015); 568‒ 3,611 m depth, sandy and muddy substrates (H.L. Clark 1911; Maluf 1988). The material examined was collected in northwestern Baja California; 982‒ 1,560 m depth.

Remarks. Examination of the types and the material available herein showed that the morphology in Amphiura carchara is very constant. The only variation observed during this study was the presence of round and separated primary plates in specimens with a DD <5 mm vs. no easily distinguishable primary plates in individuals with a DD> 6 mm.

MCZ

Museum of Comparative Zoology

Kingdom

Animalia

Phylum

Echinodermata

Class

Ophiuroidea

Order

Amphilepidida

Family

Amphiuridae

Genus

Amphiura

Loc

Amphiura carchara H.L. Clark, 1911

Granja-Fernández, Rebeca, Hendrickx, Michel E., Rangel-Solís, Pedro Diego & López-Pérez, Andrés 2023
2023
Loc

Pandelia carchara

Kyte, M. A. 1969: 1737
Fell, B. H. 1962: 10
1962
Loc

Amphiura carchara H.L. Clark, 1911: 142‒143

Clark, H. L. 1911: 143
1911
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF