Alpheus cf. packardii Kingsley, 1880

Giraldes, Bruno Welter & Freire, Andrea Santarosa, 2015, Extending the southern range of four shrimps (Crustacea: Decapoda: Stenopodidae, Hippolytidae and Alpheidae) in southwestern Atlantic (27 S) and confirming the presence of Mediterranean Stenopus spinosus Risso, 1827 in Brazil, Zootaxa 3972 (3), pp. 419-431 : 424

Alpheus cf. packardii Kingsley, 1880

( Figure 5 )

References. Soledade & Almeida 2013: 105, Figure 6 A.

Material examined. 1 male, (TL: 22mm), 12 Feb, 2014, Gales Island–SC, 7m, 27°10'88.7''S 48°24'61.5''W, ( LCP /UFSC-083), between coral structures of Madracis decactis (Lyman, 1859) .

Material observed: 2 individuals, 12 Feb, 2014, Gales Island–SC, 7m, 27°10'88.7''S 48°24'61.5''W, in outcropping coral Madracis decactis (Lyman, 1859) between coral structures.

Distribution. Western Atlantic, at Bermuda, Virginia to South Carolina, Florida, Gulf of Mexico, Bahamas, Mexico (Quintana Roo and Yucatan), West Indies, and Brazil. In Brazil occur in Atol das Rocas (3o S), Fernando de Noronha (13o S), and from Amapá (01o N) to São Paulo (23o S).

Remark. The present record (27o S) extends the species range 500 km towards the south in the western Atlantic.

Figures

FIGURE 5. Alpheus cf. packardii Kingsley, 1880 with absent fourth pereiopod. (A) Superior view, alive animal with natural posture and colour pattern; (B) lateral view with natural posture and colour pattern; (C) close-up of lateral view highlighting the presence of rostrum, the absence of orbital teeth and the proportion of proximal antennal and antennular segments; (D) white spiniform setae of the lateral branch of uropod; (E) superior view of carapace highlighting the rostrum, the absence of teeths on orbital hoods and the adrostral depressions mesially in orbital hoods; (F) minor first chela with balaeniceps setae; (G) major first chela notched dorsally and not notched ventrally; (H) merus of third and fourth pereiopods without prominent tooth on distal end. Scale bars: a – b 5 mm; c – h 1 mm.

FIGURE 6. Lysmata ankeri Rhyne & Lin, 2006. (A) Lateral view with natural colour pattern; (B) dorsal view with natural posture and colour pattern; (C) close-up of carapace lateral view highlighting proportions and features of rostrum, carapace and antennular segments; (D) close-up of carapace dorsal view highlighting the spines in carapace and the proportion of rostrum, antennular peduncle and antennular scale; (E) alive animals in cavities, highlighting the bright neon V shape observed in field; (F) left second pereiopod with 36 segments on carpus. Scale bars: a, b 1 cm; c, d, e 5 mm.