Leptochiton belknapi Dall, 1878

Sirenko, Boris & Sellanes, Javier, 2016, Update of the genus Leptochiton (Mollusca: Polyplacophora) in Chilean deep waters: three new reports and description of two new species, Zootaxa 4173 (3), pp. 259-279: 262-264

publication ID

http://doi.org/10.11646/zootaxa.4173.3.5

publication LSID

lsid:zoobank.org:pub:8688AA5A-4B69-49A3-995E-65A8FD39F783

persistent identifier

http://treatment.plazi.org/id/224687DD-FF9E-7F56-FF1C-7BE4A6B1FDF8

treatment provided by

Plazi

scientific name

Leptochiton belknapi Dall, 1878
status

 

Leptochiton belknapi Dall, 1878 

( Figs 1View FIGURE 1 A, B, 2–4)

Leptochiton belknapi Dall, 1878: 1  ; Kaas & Van Belle, 1987: 23, fig.10; Schwabe & Sellanes, 2010: 33, fig.1L–M; Sirenko, 2015: 154 –155.

Leptochiton alveolus  ; Ferreira, 1979:152, fig 10 (in part, non Chiton alveolus M.Sars  MS, Lovén, 1846); Kaas & Van Belle, 1985: 36, fig.14, map 6 (in part, non Chiton alveolus Lovén, 1846  ).

Leptochiton farallonis Dall, 1902: 557  .

Leptochiton mesogonus Dall, 1902: 555  . Leptochiton opacus Dall, 1908: 218  .

Leptochiton  sp. Sellanes et al., 2004: 1066.

Type material. Holotype (USNM 30972).

Type locality. Off Western Aleutian Islands , 53°08’N, 171°19’W, 1840 m depth.GoogleMaps 

Material examined. Holotype; off Chile, RV AGOR Vidal Gormáz, st. VG07-7, AGT-8, 36.0023°– 36.0058°S, 73.3841°  73.3706°W, 922–1013 m depth, 2 spms ( ZISPAbout ZISP 2274View Materials), BL— 18–20 mm, 07.10.2007; RV Melville st. INSPIRE, AGT-3_533  , 36.22523°S, 73.43115°W, 724 m, 4 spms (SCBUCN 4136), BL— 12–30 mm, 0 9.03.2010.

Distribution. Widespread species, inhabits the Pacific Ocean from off Pacific side of Hokkaido (40°12’N), the Sea of Okhotsk and Bering Sea and North and South America’s Pacific waters southwards to 42°40’S, at depth of 100 to 3724 m, based on SEM examination of 23 specimens from the mentioned areas.

Revised diagnosis. Animal of moderate size, elongate oval. Intermediate valves subcarinated. Tegmentum sculptured with small granules evenly arranged quincuncially. Each granule with one megalaesthete and two micraesthetes positioned in front of megalaesthete. Dorsal side of girdle densely covered with pointed scales with 2–4 ribs. Central tooth of radula short and wide, major lateral tooth with big, unicuspid head and very small denticle (also termed appendix) at inner edge. Fifteen gills per side ranging from valve VII to anus.

ZISP

Zoological Institute, Russian Academy of Sciences

Kingdom

Animalia

Phylum

Mollusca

Class

Polyplacophora

Order

Lepidopleurida

Family

Leptochitonidae

Genus

Leptochiton

Loc

Leptochiton belknapi Dall, 1878

Sirenko, Boris & Sellanes, Javier 2016

2016
Loc

Leptochiton

Sellanes 2004: 1066

2004
Loc

Leptochiton belknapi

Sirenko 2015: 154
Schwabe 2010: 33
Belle 1987: 23Dall 1878: 1

1987
Loc

Leptochiton alveolus

Belle 1985: 36
Ferreira 1979: 152

1979
Loc

Leptochiton farallonis

Dall 1902: 557

Loc

Leptochiton mesogonus

Dall 1908: 218Dall 1902: 555