Mya arenaria Linnaeus, 1758

Zhang, Jun-Long, Xu, Feng-Shan & Liu, Rui-Yu, 2012, The Myidae (Mollusca, Bivalvia) from Chinese waters with description of a new species, Zootaxa 3383, pp. 39-60: 43-45

publication ID

http://doi.org/ 10.5281/zenodo.281734

persistent identifier

http://treatment.plazi.org/id/03F68795-E249-793D-09BE-FCE1FCA32118

treatment provided by

Plazi

scientific name

Mya arenaria Linnaeus, 1758
status

 

Mya arenaria Linnaeus, 1758 

Figure 3 A –OView FIGURE 3. A – O

Mya arenaria Linnaeus, 1758: 670  — Hanley, 1842 –1856: 19; Dunker, 1882: 176; Oldroyd, 1925: 198, pl. 32, figs. 1 a & 1 b; Lamy, 1927: 157 –168; Nagao & Inoue, 1941: 145 –147, pl. 32 (1), figs. 11, 12 & 14; MacGinitie, 1959: pl. 25, fig. 5; Bernard, 1983: 57; Bernard et al. 1993: 107; Qi, 1996: 268 –269, fig. 327; Darkina & Lutaenko, 1996: 79; Xu, 1997: 229; Petersen, 1999: 326, figs. 6 A & B; Xu & Zhang, 2008: 257, fig. 809; Xu, 2008: 589; Coan et al. 2000: 470, pl. 100; Huber, 2010: 460 (text-fig.).

Mya communis Megerle  von Mühlfeld, 1811: 46.

Mya lata Sowerby, 1812  –1815: 185, pl. 81.

Mya acuta Say, 1822: 313  .

Mya mercenaria Say, 1822: 313  .

Mya subovata Woodward, 1833: 43  , pl. 2, fig. 5.

Mya subtruncata Woodward, 1833: 43  , pl. 2, fig. 6.

Mya corpulenta Conrad, 1845: 68  , pl. 39, fig. 1.

Mya alba Agassiz, 1839: 1  .

Mya japonica Jay, 1856: 292  , pl. 1, figs. 7 & 10 — Makiyama, 1935: 137 –139, text-fig. j; Habe, 1955: 22 –23, pl. 7, fig. 12; Fujie, 1957: 406 –409, pl. 1, figs. 1–5; MacGinitie, 1959: pl. 19, figs. 6 & 8.

Mya hemphilli Newcomb, 1874: 415  .

Mya elongata Locard, 1886: 383  , 586.

Mya paternalis Matsumoto, 1930: 98  , pl. 39, fig. 2.

Mya oonogai Makiyama, 1935: 137  , text-fig. i.

Mya (Arenomya) japonica Jay, 1856  — MacNeil, 1965: 31 –33, pl. 3, figs. 7, 8 & 10, pl. 4, figs. 1–11, pl. 6, fig. 6; Habe, 1977: 278, pl. 58, fig. 3; Scarlato, 1981: 405 –406, figs. 444–449; Okutani, 2000: 1021, pl. 508, fig. 3.

Mya (Arenomya) japonica oonogai Makiyama, 1935  — Habe, 1955: 22 –23, pl. 6, fig. 3.

Mya japonica oonogai Makiyama, 1935  — Fujie, 1957: 403 –406, pl. 2, figs. 1–6.

Mya arenaria japonica Jay, 1856  —Tchang et al. 1955: 61, pl. 18, figs. 2 & 3.

Mya (Arenomya) arenaria Linnaeus, 1758  — MacNeil, 1965: 33–35, pl. 5, figs. 2–12, pl. 6, figs 1–15, 17 & 18; Bernard, 1979: 194–199, figs. 17 & 18.

Mya (Arenomya) arenaria oonogai Makiyama, 1935  — Yoo, 1976: 139, pl. 33, fig. 9; Habe, 1977: 278, pl. 58, fig. 4; Kwon et al., 1993: 385, fig. 96 - 1; Okutani, 2000: 1021, pl. 508, fig. 2; Kwon et al. 2001: 277, fig. 1132.

Material examined. MBM 264720 (1 articulate shell), Moye Island, Weihai, China, on April 22 nd, 1951; MBM 264722 (2 articutate shells, 1 left valve), fish market, Qingdao, China, collected by Ma Xiu-tong, on September 7 th, 1959; MBM 264721 (1 articulate shell), Shandong Penisula, China, exact locality unknown, on April 1951; MBM 264723 (1 articulate shell), in sand, Cangkou, Qingdao, China, on December 10 th, 1950; MBM 300737 (1 articulate shell), fishpond, Rongcheng, Weihai, China, collected by Ma Xiu-tong, on July, 1951; MBM 136114 (3 articulate shells) fish market, Qingdao, China, on November, 1950; MBM 264731 (1 articulate shell), Qingdao, China, collected by Ma Xiu-tong, on September, 1994; MBM 119998 (1 articulate shell), Sea of Japan, Peter the Great Bay, donated by Dr. Lutaenko K. A. (Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences); MBM 119999 (1 articulate shell) Island of Helgoland, Germany, collected by Xiang Jian-hai, on April, 1984.

Distribution and habitat. Miocene to Recent. Circumboreal. Intertidal to about 20m depth, in sandy mud.

Type locality. Europe.

Diagnosis. Length to 150 mm; shell thick, ovate; posterior shell margin weakly acuminate; left valve slightly larger than right valve; umbo slightly anterodorsal; shell covered with yellowish periostracum; sculpture of strong commarginal growth lines and subdued radials; chondrophore of left valve bounded anteriorly by a ridge, resilifer in right valve; pallial sinus deep, reaching beyond shell center; pallial line well defined.

Remarks. The figure of Mya (Arenomya) arenaria  in Keen (1969: N 691, fig. E 153,9) may be misleading in that it shows a pointed pallial sinus which barely reaches the center of the shell and with an apparently discontinuous pallial line. However, in the specimens we examined, and of most figures we found in the literature, the pallial sinus is rounded and reaches beyond the center of the shell, and the pallial line is rugged but entire.

Most Japanese scientists accepted Mya japonica Jay, 1856  , and M. japonica oonogai Makiyama, 1935  (or M. arenaria oonogai  ) as separate species ( Fujie 1957, 1962; Habe 1955; Makiyama 1935; Okutani 2000). However, Bernard (1979, 1983), Coan et al. (2000), Nagao & Inoue (1941) and Huber (2010) considered Mya japonica  and M. arenaria oonogai  as synonyms of M. arenaria  . Nagao & Inoue (1941) noticed that the differences between the two groups in southern and northern Japan are linked by many intermediate specimens. Fujie (1962) admitted that M. japonica oonogai  closely resembles M. arenaria  but hesitated to synonymize the Japanese species without examination of the Atlantic species. MacNeil (1965) considered M. oonogai  and M. japonica oonogai  as junior synonyms under the name of M. japonica  . Bernard (1979) found that M. arenaria  and M. japonica  could not be separated by statistic analysis.

Our material contains two morphotypes which exhibit the differences mentioned by Fujie (1957), MacNeil (1965) and Nagao & Inoue (1941). One type has a longer and thinner posterior end and regular thin commarginal growth lines similar to M. arenaria  ( Fig. 3 A –FView FIGURE 3. A – O); the other type is nearly equilateral, with rough commarginal wrinkles and a relatively shorter and more round posterior end similar to M. japonica  ( Fig. 3 G –IView FIGURE 3. A – O). Bernard (1979) mentioned that M. japonica  has a “larger, more alate chondrophore” whereas, according to MacNeil (1965), the chondrophore of M. arenaria  “tends to be larger” and “slightly more horizontal”. The chondrophores in our material do not coincide with any of the previous descriptions. Even comparing the type figures of M. arenaria  (see The Linnean Society of London 2010) and M. japonica  (see Jay 1856: pl. 1, figs. 7 & 10; Higo et al. 2001: fig. 95.8), and material from the Sea of Japan ( Fig. 3 J –LView FIGURE 3. A – O) and Germany ( Fig. 3 M –OView FIGURE 3. A – O), we could not find significant differences. Hence, available evidence suggests ecophenotypic variation which remains to be tested genetically, however.

According to Fujie (1957, 1962) and others, M. arenaria  originated in the Pacific in the Miocene, spread into the Atlantic during the Miocene to Pliocene, and was reintroduced into the East Atlantic and East Pacific by anthropogenic activities after its extinction in these areas during the Pleistocene (see also, Bernard 1979; Conde et al. 2010; Gollasch 2006; MacNeil 1965; Strasser 1999).

Kingdom

Animalia

Phylum

Mollusca

Class

Bivalvia

Order

Myoida

Family

Myidae

Genus

Mya

Loc

Mya arenaria Linnaeus, 1758

Zhang, Jun-Long, Xu, Feng-Shan & Liu, Rui-Yu 2012
2012
Loc

Mya (Arenomya) arenaria oonogai

Kwon 2001: 277
Okutani 2000: 1021
Kwon 1993: 385
Habe 1977: 278
Yoo 1976: 139
1976
Loc

Mya (Arenomya) japonica

Okutani 2000: 1021
Scarlato 1981: 405
Habe 1977: 278
MacNeil 1965: 31
1965
Loc

Mya japonica oonogai

Fujie 1957: 403
1957
Loc

Mya (Arenomya) japonica oonogai

Habe 1955: 22
1955
Loc

Mya japonica

Fujie 1957: 406
Habe 1955: 22
Makiyama 1935: 137
Jay 1856: 292
1935
Loc

Mya arenaria

Huber 2010: 460
Xu 2008: 257
Coan 2000: 470
Petersen 1999: 326
Xu 1997: 229
Qi 1996: 268
Darkina 1996: 79
Bernard 1993: 107
Bernard 1983: 57
Nagao 1941: 145
Lamy 1927: 157
Oldroyd 1925: 198
Dunker 1882: 176
Linnaeus 1758: 670
1882
Loc

Mya communis

Muhlfeld 1811: 46
1811
Loc

Mya acuta

Say 1822: 313
Loc

Mya mercenaria

Say 1822: 313
Loc

Mya subovata

Woodward 1833: 43
Loc

Mya subtruncata

Woodward 1833: 43
Loc

Mya corpulenta

Conrad 1845: 68
Loc

Mya alba

Agassiz 1839: 1
Loc

Mya hemphilli

Newcomb 1874: 415
Loc

Mya elongata

Locard 1886: 383
Loc

Mya paternalis

Matsumoto 1930: 98
Loc

Mya oonogai

Makiyama 1935: 137