Stegonotus derooijae Ruane et al., 2017:13

Kaiser, Christine M., Kaiser, Hinrich & O’Shea, Mark, 2018, The taxonomic history of Indo-Papuan groundsnakes, genus Stegonotus Duméril et al., 1854 (Colubridae), with some taxonomic revisions and the designation of a neotype for S. parvus (Meyer, 1874), Zootaxa 4512 (1), pp. 1-73 : 56

publication ID

https://doi.org/ 10.11646/zootaxa.4512.1.1

publication LSID

lsid:zoobank.org:pub:E752FB7B-F34C-4D12-B8A2-EA6C791DD6C7

DOI

https://doi.org/10.5281/zenodo.5997424

persistent identifier

https://treatment.plazi.org/id/C80EBE29-FFF0-FFC1-FF75-FDF60A02F80E

treatment provided by

Plazi

scientific name

Stegonotus derooijae Ruane et al., 2017:13
status

 

Stegonotus derooijae Ruane et al., 2017:13

Taxonomic status. Valid.

Synonyms. None.

Original name. Stegonotus derooijae Ruane et al., 2017:13 . The species epithet honors Nelly de Rooij ( Fig. 17I View FIGURE 17 ), who described S. florensis (see above). The species description was presented in English.

Type specimens. Holotype: MZB Ophi.3288 ( Fig. 32 View FIGURE 32 A–E; Ruane et al. 2017: Fig. 6 View FIGURE 6 ), an adult male ( Table 1) . Paratypes: MZB Ophi.3293 ( Fig. 32 View FIGURE 32 F–H), listed as possibly female . SAMA R70467 ( Fig. 32 View FIGURE 32 I–K), listed as possibly female .

Type localities. All type specimens were collected in Raja Ampat Regency, West Papua Province, Indonesia. Holotype: Waibya Camp, Salawati Island, elev. 75 m (ca. 0.9564°S, 130.78°E). Paratypes: MZB Ophi.3293, same data as the holotype; SAMA R70467, Warinkabom , Batanta Island, elev. 50 m (ca. 0.8369°S, 130.72°E) GoogleMaps .

Collection. All type specimens were collected by Stephen Richards, Burhan Tjaturadi, and Keliopas Krey between 5 and 28 June 2005.

Key characteristics of the type specimens. (1) Holotype, MZB Ophi.3288: 455 mm SVL + 193 mm TL = 648 mm TTL. V ♂ = 181, SC ♂ = 94 , SCR ♂ = 0.34, D = 17-17-15, SL E = 3+4, SL = 7 , IL = 8, IL G = 5. (2) Paratype, MZB Ophi.3293: 450 mm SVL + 168+ mm TL = 618+ mm TTL. V? = 178, SC? = O, SCR? = O, D = O-17-O, SL E = O, SL = 7, IL = 9, IL G = O. (3) Paratype, SAMA R70467 : 290 mm SVL + 108 mm TL = 398 mm TTL. V? = 178, SC? = 90, SCR? = 0.34, D = O-17-O, SL E = O, SL = 7, IL = 8, IL G = O.

Key characteristics of the species. According to their specimen list, Ruane et al. (2017: Appendix) included four specimens (three types, one without type status) of S. derooijae in their analysis. Those the authors considered as possibly female we considered as unsexed for the purposes of our analysis and lumped them into a questionable category for the potentially sexually dimorphic values of V, SC, and SCR, as indicated by a subscripted question mark (?). Of the examined series, one unsexed specimen was collected on Batanta, one male and one unsexed specimen on Salawati, and one unsexed specimen on Waigeo. Characteristics include V? = 178–197 (184 ± 11.0), V ♂ = 181; SC? = 90–91, SC ♂ = 94; SCR? = 0.33, SCR ♂ = 0.34; D = O-17-O (100%); SL E most likely 3+4; SL = 7 (n = 3, 75%) or 9 (n = 1, 25%); IL = 8 (n = 2, 50%) or 9 (n = 2, 50%); IL G most likely 5. The range in ventral scales gives us pause, as it is large and with a very high standard deviation. In other species of Stegonotus , standard deviations for ventral scales range from 4–8 scales, and 11 appears to be very high, even if two sexes are lumped together in this data set.

Comment. Ruane et al. (2017) considered S. derooijae to be a member of their S. diehli complex.

MZB

Museum Zoologicum Bogoriense

SAMA

South Australia Museum

SCR

Scripps Institution of Oceanography, University of California

Kingdom

Animalia

Phylum

Chordata

Class

Reptilia

Order

Squamata

Family

Colubridae

Genus

Stegonotus

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