Tiwaripotamon edostilus Ng & Yeo, 2001

Shih, Hsi-Te & Do, Van Tu, 2014, A new species of Tiwaripotamon Bott, 1970, from northern Vietnam, with notes on T. vietnamicum (Dang & Ho, 2002) and T. edostilus Ng & Yeo, 2001 (Crustacea, Brachyura, Potamidae), Zootaxa 3764 (1) : -

publication ID

https://doi.org/ 10.11646/zootaxa.3764.1.2

publication LSID

lsid:zoobank.org:pub:286DF2A3-C8FE-4E66-88D8-F637EE7B2502

DOI

https://doi.org/10.5281/zenodo.6144884

persistent identifier

https://treatment.plazi.org/id/AF1F3E05-E660-FFF3-FF44-3ADF405D34C5

treatment provided by

Plazi

scientific name

Tiwaripotamon edostilus Ng & Yeo, 2001
status

 

Tiwaripotamon edostilus Ng & Yeo, 2001 View in CoL

( Fig. 7 View FIGURE 7 )

Tiwaripotamon edostilus Ng & Yeo, 2001: 282 View in CoL , figs. 4, 5.—Ng et al. 2008: 167.— Dang & Ho 2012: 214, fig. 77.

Material examined. 1 male (26.1× 21.4 mm), 4 females (33.0× 26.2 mm –38.5× 30.7 mm) (IEBR-FC TE01); 1 male (42.0× 33.9 mm), 4 females (34.7× 27.9 mm –43.2× 34.9 mm) (NCHUZOOL 13613); Cat Ba Island, Hai Phong City, Vietnam, 15–170 m, coll. V. T. Do, 18–19 March 2013.

Coloration. Carapace and legs scarlet red, chela pink ( Fig. 7 View FIGURE 7 C–E). Some females with purple ambulatory legs ( Fig. 7 View FIGURE 7 C). Freshly preserved specimens dark red ( Fig. 7 View FIGURE 7 A, B).

Ecological notes. This species inhabits in the limestone formations, living inside and outside the caves, as well as the crevices on the outside of the mountains ( Fig. 7 View FIGURE 7 E, F). There are many caves that are large, long and deep at Cat Ba Island. These caves are almost dry and dark near the openings, and it was difficult to observe if there was water inside for these crabs.

Remarks. The carapace is about 1.2 times broader than long (n = 10). Ambulatory legs are smooth, conspicuously long and slender; the merus of the fouth pair is about 5.6 times longer than wide for larger specimens (CW ≥ 55 mm, n = 4), or 5.0 times for smaller ones (CW ≤ 51 mm, n = 6). The ratio is different from the holotype measurements, which has the ratio of 6.4 (Ng & Yeo 2001: 285). An estimation derived from a photograph of holotype (Ng & Yeo 2001: fig. 4) obtains a value of 5.1, which agrees with the ratios of our study, although the difference may be caused by the measurement on different positions or the unevenness of legs in the photograph.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Potamidae

Genus

Tiwaripotamon

Loc

Tiwaripotamon edostilus Ng & Yeo, 2001

Shih, Hsi-Te & Do, Van Tu 2014
2014
Loc

Tiwaripotamon edostilus Ng & Yeo, 2001 : 282

Dang 2012: 214
Yeo 2001: 282
2001
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