. Bulletin. Natural history; Natuurlijke historie. A Revision of Parhyalella Kunkel (Crustacea: Amphipoda: Gammaridea) 21. Figure 12. Parhyalella bariiardi Lazo-Wasem and Gable, new species, USNM 1000153, male holotype, mm. Abbre- viation: P, pereopod. were only able to estimate the relative extension of antenna 1 against antenna 2 based on the dissected appendages. Because we were not able to figure an entire head with anten- nae, gnathopods, and pereon segments 1 to 4, we cannot accurately judge the inflation of antennae or the features of the eye. Ruffo (1953), however, distinguishes th
. Bulletin. Natural history; Natuurlijke historie. A Revision of Parhyalella Kunkel (Crustacea: Amphipoda: Gammaridea) 21. Figure 12. Parhyalella bariiardi Lazo-Wasem and Gable, new species, USNM 1000153, male holotype, mm. Abbre- viation: P, pereopod. were only able to estimate the relative extension of antenna 1 against antenna 2 based on the dissected appendages. Because we were not able to figure an entire head with anten- nae, gnathopods, and pereon segments 1 to 4, we cannot accurately judge the inflation of antennae or the features of the eye. Ruffo (1953), however, distinguishes this species from P. batesoni and P. pietschmanni based on the inflation of the antennae (that is, the anten- nae are much less inflated in P. congoensis than in either P. batesoni or P. pietschmanni). Parhyalella barnardi Lazo-Wasem and Gable new species Figures 9-13 Material examined: USNM 1000153: male holotype, mm. USNM 1000154: female al- lotype, mm. USNM 1000155: male paratype, mm. USNM 1000156: four male. 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 Peabody Museum of Natural History. New Haven : The Museum
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