Arrup obtusus ( Takakuwa, 1934a )

Jonishi, Taro & Nakano, Takafumi, 2022, Correct Authorships, Synonymies, and Remarks on the Type Series of Fourteen Names of Centipedes Introduced by Yoshioki Takakuwa in 1934 and Mecistocephalus takakuwai (Chilopoda: Geophilomorpha and Scolopendromorpha), Species Diversity 27 (1), pp. 71-81 : 76

Arrup obtusus ( Takakuwa, 1934a)

[Japanese name: Nibuzume-jimukade]

Prolamnouyx [sic] obutusus [sic] Takakuwa, 1934a: 707 (key; incorrect original spelling of obtusus ; an available name).

Prolamnonyx obtusus Takakuwa, 1934b: 358–359 , fig. 6 (invalidly described as new); Attems 1947: 105 (key); Takashima and Shinohara 1952: 9.

Prolamnonyx obtusus Takakuwa, 1934c: 882 , figs 23–26 (invalidly described as new).

Prolamnonyx obtusus (without attribution): Takakuwa 1940a: 93–94, fig. 97 (also cited as P. obstusus on p. 91).

Arrup obtusus: Crabill 1964: 166 (list) [ Takakuwa (1934b) cited as original description]; Foddai et al. 2003: 1261, table 1 (no attribution); Uliana et al. 2007: 15–16 [authorship attributed to Takakuwa (1934b)].

Type series. No types were designated in Takakuwa (1934a –c), and these works have no implication of the composition of the original material. Takashima (1955) stated that a holotype was preserved by Miyosi, but we found no such specimen in the Miyosi Collection and assume it has been lost.

Type locality. Takakuwa (1934a) did not mention the type locality, while Takakuwa (1934b) stated that the locality of this species was “ Tokyo ”, and Takakuwa (1934c) mentioned Kojimachi (currently in Chiyoda District, Tokyo) as the locality.

Japanese name. The Japanese name that was first introduced by Takakuwa (1934c) was “Nibuzume-nagazujimukade”, but the shorter name “Nibuzume-jimukade” has been used in subsequent publications ( Takakuwa 1938b, 1939a, 1940a; Murakami 1993) and is adopted here.

Remarks. The authorship of this species in ChiloBase 2.0 (Bonato et al. 2016c), currently given as Takakuwa (1934b), should be corrected to Takakuwa (1934a).

This species first appeared in Takakuwa (1934a) as Prolamnouyx [sic] obutusus [sic]. The generic name is obviously a misspelling of Prolamnonyx Silvestri, 1919 . The species epithet is presumably based on the thick, short and blunt pretarsus of the locomotory legs, a feature used in Takakuwa’s (1934a) key as “各歩üo爪ḋ太fi<fl<ẫ ” [possibly a misprint for “flẫ ”, as described in Takakuwa (1934c)]. However, the Latin adjective corresponding to “obtuse” is obtusus , the name used in Takakuwa’s (1934b, c) two subsequent descriptions of the same taxon. Although these later usages are not admissible in judging whether “ obutusus ” is a lapsus calami, we deem it obviously to be one, therefore to be corrected as “ obtusus ”, in accordance with Article 32.5.1 of the Code.