Trapezia septata Dana, 1852

Boyko, Christopher B., Mendoza, Jose C. E. & Castro, Peter, 2017, New records of coral-associated crabs (Decapoda: Brachyura: Carpilioidea, Trapezoidea) from Easter Island, Zootaxa 4216 (5), pp. 487-494 : 491

publication ID	https://doi.org/10.5281/zenodo.242372
publication LSID	lsid:zoobank.org:pub:3CFEC987-701F-441F-94AE-848D177B4017
DOI	https://doi.org/10.5281/zenodo.6000761
persistent identifier	https://treatment.plazi.org/id/03EB87BE-FF89-FFC3-FF1A-FC5D96B4FA28
treatment provided by	Plazi (2017-01-13 14:01:23, last updated 2024-11-27 07:30:56)
scientific name	Trapezia septata Dana, 1852
status

Treatment

Trapezia septata Dana, 1852 View in CoL ?

( Fig. 1 View FIGURE 1 E)

Material examined. 1 male (9.5 mm ×8.0 mm), 1 female (9.3 mm ×8.0 mm), 1 juvenile (4.8 mm × 3.5 mm), north of Ahu Tepeu , Easter Island, 108 feet (= 32.9 m) depth, coll. H. Tonnemacher, 26 Aug 1999 ( ZRC 2016.0125 View Materials ) ; 2 males (12.3 mm × 10.9 mm, 17.8 mm × 12.1 mm), 1 ovigerous female (11.8 mm × 9.9 mm), Easter Island, coll. L. H. DiSalvo, 1985 ( LACM MBC 17836) .

Geographical distribution. Indian Ocean east of Sri Lanka and western and central Pacific Ocean (Castro et al. 2004) and now to Easter Island (herein).

Remarks. The color pattern of the Easter Island specimens is close to that of T. septata Dana, 1852 , but there are some differences. The markings on the carapace and chelipeds of the Easter Island specimens are arranged as irregular lines, whereas those of T. septata form small squares ( Castro 2009: fig. 2C). As T. septata , this is the first record of the species from Easter Island and extends the known range eastward from the Marshall Islands and Samoa by nearly 6600 km.

References

Castro, P. (2009) Trapeziidae and Tetraliidae (Crustacea, Brachyura) of the Philippines (PANGLAO 2004 expedition), New Guinea, and Vanuatu (SANTO 2006 expedition). Raffles Bulletin of Zoology, 20 (Supplement), 271 - 281.

Dana, J. D. (1852) United States Exploring Expedition. During the years 1838, 1839, 1840, 1841, 1842. Under the command of Charles Wilkes, U. S. N. Crustacea Part I. Fol. 13. C. Sherman, Philadelphia, viii + 685 pp.

Figures

FIGURE 1. Live coloration of trapezioid crabs from Easter Island. A, Cherusius triunguiculatus (Borradaile, 1902), male (4.7 mm × 3.7 mm) (ZRC 2016.0121). B, Domecia hispida Eydoux & Souleyet, 1842, female (5.9 mm × 4.6 mm) (ZRC 2016.0122). C, Trapezia punctimanus Odinetz, 1983, male (12.2 mm × 10.6 mm) (ZRC 2016.0123). D, T. punctimanus, male (6.5 mm × 5.6 mm) (ZRC 2016.0124). E, Trapezia septata Dana, 1852? male (9.5 mm × 8.0 mm) (ZRC 2016.0125).