Montanabathynella, Camacho & Stanford & Newell, 2009

Camacho, A. I., Stanford, J. A. & Newell, R. L., 2009, The first record of Syncarida in Montana, USA: a new genus and species of Parabathynellidae (Crustacea, Bathynellacea) in North America, Journal of Natural History 43 (5 - 6), pp. 309-321 : 310-311

Montanabathynella gen. nov.

Genus diagnosis

Antennule has seven segments and terminal aesthetascs on the fifth to seventh segments. Antenna has six segments, the fourth without setae. Mandible with protuding pars molaris. Maxillule with proximal endite with four teeth and distal endite with nine teeth. Exopods of thoracopods (Th) 1 to 7 with three to six segments; epipod absent on Th 1 to Th 3; the first and second segment of the endopods of Th 1 to Th 7 with a plumose dorsal seta each. Male Th 8: very large, twice as long as wide; small endopod with two setae; exopod longer than endopod, longer than wide and recurved anteriorly; trapezoidal basipod with a terminal seta; the basal region of the penial complex supports four lobes: inner lobe, outer lobe, dentate lobe and small lobe; rounded inner lobe completely integrated into the basal region; the small lobe is in close contact with, but independent of, the inner lobe and with small dorsal teeth; outer lobe is twice as long as wide and covered at the end of the small lobe; the dentate lobe is smaller than the inner lobe. Female Th 8 very large, with two segments: the second segment with three long terminal setae. No pleopods. Sympod of uropod with subequal spines, the distal spine twice as long as others; endopod with four spines and one spinous process and three apical setae; exopod with 12 setae.

Type species

Montanabathynella salish sp. nov.