Laticallichirus grandis ( Karasawa & Goda, 1996 )

Ando, Yusuke, Kawano, Shigenori, Muramiya, Yusuke, Niiyama, Sota, Kameyama, Sohiko & Shimoyama, Shoichi, 2020, Fossil decapods from the Upper Quaternary in Shinjima Island in Kagoshima Kyushu, Japan, and description of a new species of ghost shrimp (Axiidea Eucalliacidae), Zootaxa 4878 (3), pp. 523-541 : 526-527

Laticallichirus grandis ( Karasawa & Goda, 1996)

( Figs. 6 A–J)

Callianassa sp. type B.—Tokai Fossil Society (Ed.) 1977: 60, pl. 27, fig. 6. Callianassa sp.— Kato & Koizumi 1992: 49, fig. 3-3. Calliax sp.— Karasawa & Tanaka 1994: 12, figs. 2-1–12. Neocallichirus sp.— Karasawa et al. 1995: 128, fig. 2. “ Neocallichirus ” grandis Karasawa & Goda, 1996: 1 , fig. 1.— Karasawa 1997: 33, pl. 5, figs. 1–4. Neocallichirus grandis .— Kato & Karasawa 1998: 5, pl. 2, figs. 7–16. — Kato 2001: 40.— Schweitzer et al. 2006: 115. Grynaminna grandis .— Obata & Hayashi 2001: 46, figs. 3.1–12.— Kato 2003: 159. — Hyžný & Karasawa 2012: 65, fig. 1A–

H.— Karasawa et al. 2014: 59, fig. 5.1–5.3.— Hyžný & Klompmaker 2015: fig. 7A, 412 (Table 1).— Ando et al. 2016: 18,

figs. 3.3–10.— Ando & Kawano 2017: 85, fig. 2.9–2.20.

Podocallichirus grandis .— Karasawa et al. 2006: 127, pl. 2, figs. 1–6.— Kobayashi et al. 2008: 111.— Schweitzer et al. 2010: 39.

Laticallichirus grandis .— Komai et al. 2019: 466–477 , figs. 1–6.— Mimoto 2020: 51, fig. 3.

Material examined. MFM 145597– MFM 145606 and over 600 other referred specimens.

Remarks. The present species has been described from the Lower Pleistocene to Recent in the Kyushu to Kanto district, Japan (e.g., Karasawa & Goda 1996; Kato & Karasawa 1998; Ando & Kawano 2017; Komai et al. 2019). Komai et al. (2019) collected the specimens of extant Laticallichirus grandis from the muddy-sand mixed with gravel bottom of subtidal zone, and Ando & Kawano (2017) showed that the species was living under the coarsegrained sandy and gravelly bottoms mixed with shells of the upper sublittoral zone. The preservation of the present specimens is similar to other described specimens that seemed to be living near the sedimentary area ( Ando et al. 2016; Ando & Kawano 2017). Therefore, the present specimens were not, in all likelihood, transported from other localities and shallower environment, and the present record suggests that the species has been living under coarsegrained sandy and gravelly bottoms mixed with shells of the lower sublittoral to subtidal zones.

Figures

FIGURE 6. Decapods from the Moeshima Shell Bed. A–J, Laticallichirus grandis (Karasawa & Goda, 1996); A, 145597, lateral view of left major cheliped; B, MFM145598, lateral view of right major cheliped; C, MFM145599, lateral view of right carpus; D, MFM145600, lateral view of left minor cheliped; E, MFM145601, lateral view of right dactylus; F, MFM145602, lateral view of right dactylus; G, MFM145603, lateral view of right dactylus; H, MFM145604, lateral view of left dactylus; I, MFM145605, lateral view of right merus; J, MFM145606, lateral view of left merus. K, Paguridae gen. et sp. indet., MFM145607, lateral view of fragment of the fixed finger. L, Pagurus cf. megalops (Stimpson, 1858b), MFM 145608, lateral view of left cheliped. M, Ebalia tuberculosa (A. Milne-Edwards, 1873), MFM145612, dorsal view of carapace. N, Myra sp., MFM145613, lateral view of fragment of the merus. O, Philyra cf. syndactyla Ortmann, 1892, MFM145614, lateral view of right cheliped. P, Majidae gen. et sp. indet., MFM145615, dorsal view of fragment of the carapace. Q, Leptomithrax sp., MFM 145616, lateral view of left cheliped. R, Romaleon sp., MFM 145617, lateral view of fragment of the dactylus. S, Charibdis sp. MFM145619, lateral view of fragment of the fixed finger. Scale bars of A–H, K, M, O, Q and S indicate 5.0 mm, and I, J, L, N, P and R indicate 1.0 mm.