Ilyograpsus vannini Sawada, Hosogi & Sakai, 2005

Komai, Tomoyuki & Wada, Keiji, 2008, A Revision Of The Estuarine Crab Genus Ilyograpsus Barnard, 1955 (Crustacea: Decapoda: Brachyura: Macrophthalmidae), With Descriptions Of A New Genus And One New Species, Raffles Bulletin of Zoology 56 (2), pp. 357-384 : 365

Ilyograpsus vannini Sawada, Hosogi & Sakai, 2005

Ilyograpsus paludicola — Vannini & Valmori, 1981: 77, Fig. 10C . Not Ilyograpsus paludicola ( Rathbun, 1909)

Ilyograpsus vannini Sawada et al., 2005: 853 (in part), Figs. 1A–C , 3A , 5B, D, F .

Name bearing type. – Holotype: female (4.0 × 4.4 mm) (Museuo Zoologico, University of Florence 664), Abo, Somalia, coll. M. L. Azzaroli. Not available for study (see Remarks).

Material examined. – None.

Remarks. – As discussed above, the paratypes of Ilyograpsus vannini from Melita Bay, Gulf of Zula, Ethiopia (RMNH D 26501), are here identified with I. rhizophorae . Unfortunately, the holotype and one paratype, both ovigerous females, from Abo, Somalia, were not available to us. We recognize the present taxon as a valid species for the time being, because of the differences seen in the shape of the carapace and the development of the anterolateral teeth on the carapace (see “ Remarks ” of I. rhizophorae ).

Sawada et al. (2005) cited Karachi, Pakistan, in the distribution of I. vannini , although they did not give any evidence.

Figures

Fig. 10. Ilyograpsus paludicola (Rathbun, 1909). Male (cl 4.3 mm), ZRC 1998-1030, Bintan, Indonesia. A, carapace, ocular peduncles and antennae, dorsal view; B, cephalothorax and cephalic appendages, frontal view; C, lower orbital margin, ventral view; D, pleon, ventral view; E, merus of left cheliped, outer view; F, same, ventral view; G, carpus and chela of left cheliped, dorsal view; H, left chela, outer view; I, left fourth pereopod, dorsal view (setae omitted); J, fifth pereopod, dorsal view (setae partially omitted); K, left first gonopod, ventrolateral view; L, same, dorsal view. Scale bars: A, B, D, E–J = 1 mm; C, K, L = 0.5 mm.

Fig. 1. Schematic illustrations of: A, carapace; B, ambulatory leg, showing measurements and terminology. CL, carapace length; CW, carapace width; L, length; W, width.

Fig. 3. Ilyograpsus rhizophorae Barnard, 1955. Male (cl 6.5 mm), paratype of Ilyograpsus vannini Sawada, Hosogi & Sakai, 2005, RMNH- D 26501, south of Massawa, Gulf of Zula, Ethiopia: A, carapace, ocular peduncles and antennae, dorsal view (setae omitted); B, left lower orbital margin and external orbital tooth, ventral view; C, anterior part of thoracic sternum, ventral view; D, pleon, ventral view; E, left cheliped, dorsal view; F, same, merus, outer view; G, same, chela, outer view; H, left fourth pereopod, dorsal view; I, left fifth pereopod, dorsal view; J, left first gonopod, ventral view; K, same, ventrolateral view; L, same, distal part, dorsal view. Scales: A = 2 mm; B–I = 1 mm; J–L = 0.5 mm.

Fig. 5. Ilyograpsus rhizophorae Barnard, 1955. A–E, I, J, ovigerous female (cl 7.2 mm), MNHN-B 12842, Tuléar, Madagascar; F, H, ovigerous female (cl 5.3 mm), MNHN-B 12843, same locality; G, female (cl 7.4 mm), paratype of Ilyograpsus vannini Sawada, Hosogi & Sakai, 2005, RMNH-D 26501, south of Massawa, Gulf of Zula, Ethiopia. A, carapace, ocular peduncles and antennae, dorsal view; B, anterior part of cephalothorax, including left ocular peduncles and antennae, frontal view; C, left lower orbital margin, ventral view; D, pleon, ventral view; E, left third maxilliped, ventral view; F, left cheliped, dorsal view; G, same, merus, outer view; H, same, chela, outer view; I, right fourth pereopod, dorsal view; J, right fifth pereopod, dorsal view. Scale bars: A, D, F = 2 mm; B, C, E, G, I, J = 1 mm; H = 0.5 mm.