Epigean And Hypogean Freshwater Shrimps Of Bohol Island, Central Philippines (Crustacea: Decapoda: Caridea) Author Cai, Yixiong Author Choy, Satish Author Ng, Peter K. L. text Raffles Bulletin of Zoology 2009 2009-02-28 57 1 65 89 journal article 10.5281/zenodo.5341574 2345-7600 5341574 Macrobcrachium equidens ( Dana, 1852 ) Palaemon equidens Dana, 1852: 26 [ type locality: Singapore ]. Palaemon sundaicus – Cowles, 1914: 355 , Pl. 2 Fig. 3 (not Palaemon sundaicus Heller, 1862 ). Macrobrachium equidens – Holthuis, 1950:162 , Fig. 36; 1980: 90; Liu et al., 1990: 110 , Fig. 8 ; Chace & Bruce, 1993: 25, Fig. 4 ; Yeo et al., 1999: 226 ; Wowor & Choy, 2001: 282; Cai & Anker, 2004: 389; Cai et al., 2004: 589; Wowor et al., 2004: 349 , Fig. 10H ; Short, 2004: 26 , Figs. 8 , 9 ; Cai & Shokita, 2006a: 265. Material examined. – 1 male , cl 7.5 mm , ZRC , River outside Inabacan Cave , Antequrra, coll. Y. Cai et al., 16 Dec.2000 ; 1 male , cl 10.5 mm , 1 female , cl 10.0 mm, ZRC , Loboc River , Loboc, coll. Y. Cai et al., 19 Dec.2000 . Remarks . – Marcobrachium equidens is a brackish water species, with gravid females and smaller specimens being commonly found in mangrove creeks. It is known from a very wide area in the Indo-West Pacific, from Madagascar to the Solomon Islands and Fiji ( Choy, 1984 ; Chace & Bruce, 1993; Short, 2004 ). However, a recent molecular analysis results ( Liu et al., 2007 ) show that the incongruence of non-monophyly of M. equidens , in 16S, COI and 16S+COI analyses, implied the existence of a cryptic species in the Philippines and Taiwan .