TABLE 2 in Taxonomic assessment of the shrimp Macrobrachium denticulatum Ostrovski, da Fonseca & da Silva-Ferreira, 1996 (Decapoda: Palaemonidae) using molecular and morphological data: a comparison with M. olfersii (Wiegmann, 1836)

TABLE 2. Comparison of the diagnostic characters between Macrobrachium denticulatum Ostrovski, da Fonseca & da Silva-Ferreira, 1996 and Macrobrachium olfersii (Wiegmann, 1836). CharactersM. denticulatumM. olfersiiRostrumLength of 1st pereiopodfrom ½ to the entire carpus extending beyond the scaphoceritefrom ½ of the carpus to ½ of the merus extending beyond the scaphoceriteCutting edge of the fixed finger of larger 2nd pereiopod Fingers of 2nd pereiopod Palm of 2nd pereiopod2–5 small teeth followed by one large proximal tooth Fingers with a gap between them Strong spines with setae and pubescence. Palm larger than the dactylus, slightly or greatly inflated2–4 small teeth followed by one large proximal tooth Fingers with a gap between them Strong spines with setae and pubescence. Palm larger or smaller than the dactylus, slightly or greatly inflatedLength of 2nd pereiopodFrom ½ of the merus to ½ of the carpus extending beyond the scaphoceriteFrom ½ of the carpus to ⅓ of the merus extending beyond the scaphocerite * Teeth on the upper margin of the rostrum (post-orbital teeth) / number of teeth on the lower margin of the rostrum.