Pachycheles rugimanus A. Milne-Edwards, 1880

Ferreira, Luciane Augusto De Azevedo & Melo, Gustavo Augusto Schmidt De, 2016, Porcelain crabs from Brazil (Crustacea: Decapoda: Anomura: Porcellanidae), Zootaxa 4092 (2), pp. 175-194 : 183

Pachycheles rugimanus A. Milne-Edwards, 1880

( Fig. 2 C)

Pachycheles rugimanus A. Milne-Edwards, 1880: 36 (type-locality: West of Florida, USA and Contoy Island, Mexico).

Material examined. USA—South Carolina, 32°50’06”N, 78°36’18”W, 2 males, 2 females (USNM-188445).

Recognition characters. Carapace as long as broad, slightly rugose on lateral margin; notch on anterolateral margin. Front broad, projecting downward, with straight margin. Postorbital angle spiniform. Basis-ischium of antenna with serrate spine on mesial margin; merus of antenna with row of unequal spinules on mesial margin. Chelipeds subequal, robust; merus with serrate distal lobe on flexor margin; carpus with 4 spines on flexor margin, 4 prominent, longitudinal, tuberculated ridges; fingers with hiatus, not pubescent. Walking legs robust; propodus with 2 spines on flexor margin, dactylus with 3 spines on flexor margin. Gonopods present in males. Telson composed of 5 plates.

Habitat. On calcareous algae and coral reefs bottoms (Veloso & Melo 1993), down to depths of 144 m (Werding 1977).

Geographic distribution. Western Atlantic—USA, North Carolina to Mexico, Contoy Island, Veracruz and Quintana Roo; Puerto Rico; Virgin Island, St. Thomas; Suriname; and Brazil (from Amapá to Pernambuco).

Figures

FIGURE 2. Preserved specimens, dorsal view. A, Pachycheles monilifer (Dana, 1852), ovigerous female (MZUSP- 10596); B, Pachycheles riisei (Stimpson, 1859), ovigerous female (DOUFPE- 7485); C, Pachycheles rugimanus A. Milne-Edwards, 1880, male (USNM- 188445); D, Petrolisthes amoenus (Guérin-Menéville, 1855), ovigerous female (MZUSP- 16713); E, Petrolisthes armatus (Gibbes, 1850), male (MZUSP- 20173); F, Petrolisthes galathinus (Bosc, 1802), ovigerous female (MZUSP- 11303); G, Petrolisthes marginatus Stimpson, 1858, ovigerous female (MNRJ- 3635); H, Petrolisthes rosariensis Werding, 1978, male (MZUSP- 10713). Scales: A, C – H (5 mm); B (1 mm).