. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A SMALL COLLECTION OF DECAPOD CRUSTACEA FROM MOZAMBIQUE lJ ANOMURA Family Porcellanidae Petrolisthes alobatus Laurie Figs 7a-c Petrolisthes alobatus Laurie, 1925: 144. Haig, 1965: 46. Description: Carapace longer than wide, with numerous transverse rugae. Cervical groove broad. Gastric region convex, bearing pair of transverse ridges anteriorly. Supra-orbital margin deeply excavate. Supra-orbital lobe without spine. No post-orbital spine but well-developed lobe. Strong epibranchial spine present, bra
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A SMALL COLLECTION OF DECAPOD CRUSTACEA FROM MOZAMBIQUE lJ ANOMURA Family Porcellanidae Petrolisthes alobatus Laurie Figs 7a-c Petrolisthes alobatus Laurie, 1925: 144. Haig, 1965: 46. Description: Carapace longer than wide, with numerous transverse rugae. Cervical groove broad. Gastric region convex, bearing pair of transverse ridges anteriorly. Supra-orbital margin deeply excavate. Supra-orbital lobe without spine. No post-orbital spine but well-developed lobe. Strong epibranchial spine present, branchial region with a blunt raised tubercle in anterior part. Posterior margin with slight raised rim, medially concave. Maxilliped three with ischium very broad, rugose, merus with expanded rugose lobe on inner margin; dactyl, propodus, carpus with very elongate branched setae. Anterior margin of carpus of pereiopod one finely denticulate, almost smooth. Posterior margin irregular due to rugae. Ventral surface of hand with keel formed by rugae, upper edge of dactyl similar. No gap between fingers. Dactyls of pereiopods two to five with small spine proximal to the subterminal one. Propodi cylindrical, smooth, bearing strong articulated spine at postero-distal angle. Carpus and merus fairly rugose. Previous records: Cargados Carajos. Material: Carapace length Carapace breadth Male . . . io-o mm 8-4 mm Ovigerous female . 12-4 mm 1 i-o mm. Fig. 7. Petrolisthes alobatus Laurie a. Carapace in dorsal view; b. Left cheliped; c. Dactyl of second Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
