Dipteropeltis hirundo

Gaboardi, Lyra M., Reeves, Lawrence E., Morey, Germán Augusto Murrieta, Stanton, Daniel L. & Carney, Ryan M., 2023, A new species of the fish louse genus Dipteropeltis Calman, 1912 (Crustacea: Branchiura) from Peru, Zootaxa 5315 (2), pp. 101-121 : 113

Dipteropeltis hirundo

Group III consisted of a single gravid adult individual of D. hirundo (Suppl. Fig. 3 ). Measurements and ratios are similar to the averages of previously published D. hirundo specimens in Neethling et al. 2014. HC/HA for the current specimen was found to be 1.09, compared to the prior average of 1.22. HA/HC was 0.92 cf. 0.86, CSL/HC was 0.75 cf. 0.85, ASL/AL was 0.85 cf. 0.81, AL/HA was 0.35 cf. 0.42, AL/HC was 0.32 cf. 0.35, SD/HA was 0.05 cf. 0.05, and SD/HC was 0.05 cf. 0.04. This specimen, similar to other recorded D. hirundo specimens, has an asymmetrical head in which the maxillulae are not directly next to each other ( Neethling et al. 2014, Møller & Olesen 2010). The left maxillule is set more anterior to the right one, making the head shield extend further forward on the left side (Suppl. Fig. 3 ).

Figures

FIGURE 3. Dipteropeltis longicaudatus sp. nov. adult specimens. (A) Specimen I.4 attached to host Triportheus albus, dorsal view. (B) Specimen I.2 (holotype MUSM 5128) preserved in 70% isopropyl alcohol, ventral view (missing right maxillule). (C) Specimen I.4, dorsal view of head and carapace. All scale bars = 5 mm.