Metacrangon monodon

• Main Author: Komai, Tomoyuki
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Crangonidae; Metacrangon; Metacrangon monodon; Kamchatka; Kamchatka Peninsula
• Online Access: https://doi.org/10.5281/zenodo.5256943; http://treatment.plazi.org/id/03A08858D610FFC76CB6118029D4FCB8

Metacrangon monodon (Birshtein & Vinogradov, 1951) (Fig. 40) Sclerocrangon monodon Birshtein & Vinogradov, 1951: 357, figs 1–3 [type locality: Chetverty Kuril Strait, North Kuril Islands, 630 m]; Zarenkov 1960: 347. Metacrangon monodon .— Zarenkov 1965: 1764 (list); De Grave & Fransen 2011: 457 (list). Material examined. None. Type material. Syntypes. Chetverty Kuril Strait, North Kurile Islands, 630 m, two specimens (the carapace length including the rostrum of one of the two specimens was 7.9 mm), probably deposited in the collections of the Zoological Institute, St. Petersburg. Not accessible. Distribution. North Kuril Islands and Kamchatka Peninsula (Fig. 40); 350–630 m (Birshtein and Vinogradov 1951; Zarenkov 1960). Remarks. No specimens referable to this species were available for this study. Metacrangon monodon appears closest to M. nipponensis in the possession of only one middorsal tooth and distinct submedian teeth on the carapace, although Birshtein & Vinogradov (1951) compared this species with M. variabilis (as Sclerocrangon ). Metacrangon monodon seems to differ from M. nipponensis in having a distinct middorsal carina on the second to fourth abdominal somites and the more strongly concave lateral margin of the antennal scale (Birshtein & Vinogradov 1951). Consequently, this taxon is regarded as a valid species for the time being. Published as part of Komai, Tomoyuki, 2012, 3468, pp. 1-77 in Zootaxa 3468 on page 26