Biffarius fragilis ( Biffar, 1970 )

Pachelle, Paulo P. G., Anker, Arthur, Mendes, Cecili B. & Bezerra, Luis E. A., 2016, Decapod crustaceans from the state of Ceará, northeastern Brazil: an updated checklist of marine and estuarine species, with 23 new records, Zootaxa 4131 (1), pp. 1-63 : 27

publication ID	https://doi.org/10.11646/zootaxa.4131.1.1
publication LSID	lsid:zoobank.org:pub:48CA9FCC-8044-448D-8CA5-5CD5B403D884
DOI	https://doi.org/10.5281/zenodo.6058302
persistent identifier	https://treatment.plazi.org/id/03B787CC-B273-9E6B-FF55-B9C377AFF80C
treatment provided by	Plazi (2016-06-27 07:42:00, last updated 2024-11-26 05:34:34)
scientific name	Biffarius fragilis ( Biffar, 1970 )
status

Treatment

Biffarius fragilis ( Biffar, 1970) View in CoL

( Figure 19 View FIGURE 19 C, D)

Callianassa fragilis Biffar 1970: 45 View in CoL , fig. 3.

Material examined. Brazil, Ceará: 1 female (with damaged abdomen), LIMCE-UFC 688, Paracuru, Praia da Pedra Rachada, coll. K. Vilanova, vi.2010.

Distribution. Western Atlantic: USA (Florida), Gulf of Mexico, Puerto Rico, Antigua, Venezuela, Brazil (Ceará, Pernambuco); Eastern Pacific (?): Galapagos, Costa Rica (Felder et al. 2009; Botter-Carvalho et al. 2012; present study).

Remarks. The present specimen represents only the second record of Biffarius fragilis in Brazil, where the species appears to be less common than B. biformis (see above). The main differences between B. fragilis and B. biformis are the shape of the posterior margin of the telson (with a broad concavity in B. fragilis vs. straight in B. biformis ) and the proportions of the minor cheliped carpus (cf. Fig. 19 View FIGURE 19 B, C). The identity of the eastern Pacific material of B. fragilis needs to be confirmed.

References

Biffar, T. A. (1970) Three new species of callianassid shrimp (Decapoda, Thalassinidea) from the western Atlantic. Proceedings of the Biological Society of Washington, 83, 35 - 50.

Botter-Carvalho, M. L., Carvalho, P. V. V. C. & Santos, P. J. (2012) New records confirming the occurrence of the ghost shrimps Biffarius biformis (Biffar, 1970) and B. fragilis (Biffar, 1971) (Decapoda, Callianassidae) in Brazil and the southwestern Atlantic. Biota Neotropica, 12, 88 - 93. http: // dx. doi. org / 10.1590 / S 1676 - 06032012000300009

Figures

FIGURE 19. Biffarius biformis (Biffar, 1971) (A, B) and Biffarius fragilis (Biffar, 1970) (C, D): A, male from Icapuí, Ceará, Brazil (MZUSP 33461), in lateral view; B, male from Icapuí, Ceará, Brazil (MZUSP 33459), in lateral view; C, D, female from Paracuru, Ceará, Brazil (LIMCE-UFC 688), frontal region of carapace (C) and left (major) first cheliped (D), in lateral views. C and D in same scale. Scale bars: 1 mm. Photographs by P. P. G. Pachelle.