Quadrimaera cristianae Krapp-Schickel & Ruffo, 2000

Alves, Jessika, Neves, Elizabeth & Johnsson, Rodrigo, 2018, A review of Quadrimaera Krapp-Schickel & Ruffo, 2000 (Amphipoda: Senticaudata) from Brazil, Zootaxa 4532 (4), pp. 567-593: 586-589

publication ID

https://doi.org/10.11646/zootaxa.4532.4.8

publication LSID

lsid:zoobank.org:pub:9CFCAE32-97F3-46EF-A679-D25B3A3622E8

persistent identifier

http://treatment.plazi.org/id/FA66D951-FFB2-FF9B-FF36-8729691BB983

treatment provided by

Plazi

scientific name

Quadrimaera cristianae Krapp-Schickel & Ruffo, 2000
status

 

Quadrimaera cristianae Krapp-Schickel & Ruffo, 2000 

( Figs. 17–18View FIGURE 17View FIGURE 18)

Examined material. Adult male (UFBA 3328), 5.6 mm, Paracurú Beach (3°24'17.3"S; 39°01'45.8"W), Ceará State, Brazil, under and in arenite reefs. April, 4 th 2012. Arthur Anker & Pachelle, P.P.G. Coll..

Subadult male (UFBA 3329), 3.9 mm, Pirangi Beach (5°59'00.2"S; 35°06'30.1"W), Rio Grande do Norte State, Brazil, (5°59'00.2"S; 35°06'30.1"W), associated with Halimeda opuntia  , intertidal zone (0–2 m of depth). March 2010. CARNEIRO, P.B. Coll.

7 specimens ( UFBA 3330), 3.5 to 5.0 mm, Pirangi Beach (5°59'00.2"S; 35°06'30.1"W), Rio Grande do Norte State, Brazil, (5°59'00.2"S; 35°06'30.1"W),associated with Halimeda opuntia  , intertidal zone (0–2 m of depth). March 2010. CARNEIRO, P.B. CollGoogleMaps  .

Description. (based on material from Ceará State, Brazil). Living specimens with an orange body and dark red and rounded eyes. Accessory flagellum 8-articulated. Antenna 2 flagellum moderately setose. Coxa 1 anteroventral corner rounded, slightly produced. Gnathopod 2 palmar margin in male with 2 U-shaped excavations defining 2 palmar processes, one subtriangular and the other posteriormost truncated, preceded by wide and deep semielliptical excavation; dactylus with inner margin smooth, medially inflated. Pereopods 3–7 dactyli bifid. Pereopods 5–7 basis ovate. Telson lobes with four elongated setae on each one.

Remarks. This is the first record of Q. cristianae  to Ceará State, Brazil, completing the species distribution along Northeastern Brazil Coast. The specimen from Ceará shows antenna 1 accessory flagellum 8-articulated and antenna 2 flagellum less setose than in the original description. Specimens found living in small orifices of sandstone reefs.

Distribution. George Cay, West Indies (Type locality). Curaçao, Netherlands Antilles. Bonaire and St. Martin, Lesser Antilles. Margarita Island, Venezuela. Grand Cayman Island, Buddentown. Mujeres Island, Yucatán Channel, Mexico. In Brazil: Paracurú beach, Ceará State; (first record); Suape Port, Pernambuco State; Abrolhos, Bahia State; Atol das Rocas, Rio Grande do Norte State.