Description  of  a  new  species  of  Paracrobeles  Heyns,  1968  (Nematoda,   Rhabditida, Cephalobidae)  from  Kelso  Dunes,  Mojave  National   Preserve,  California,  USA

A new species of Paracrobeles, P. kelsodunensis sp. nov. is described from the Kelso Dunes area, Mojave National Preserve, southern California. Paracrobeles kelsodunensis sp. nov. is particularly characterised by a body length of 469–626 μm in females and 463–569 μm in males; lateral field with four incisures, extending almost to tail terminus; three pairs of asymmetrical lips, separated by U-shaped primary axils with two long guarding processes, each lip usually with four tines along its margin; three long labial probolae, deeply bifurcated, with slender prongs without tines; metastegostom with a strong anteriorly directed dorsal tooth; pharyngeal corpus anteriorly spindle-shaped, posteriorly elongate bulbous with dilated lumen; spermatheca 24–87 μm long; postvulval uterine sac 60–133 μm long; vulva in a sunken area; spicules 33–38 μm long; and male tail with a 5–8 μm long mucro. The generic diagnosis is emended on the basis of recently described species and a key to the species of Paracrobeles is provided.

Holovachov, OleksandrNaturhistoriska riksmuseet,Enheten för zoologi(Swepub:nrm)olekholo (author)
Naturhistoriska riksmuseetEnheten för zoologi (creator_code:org_t)

In:European journal of taxonomy: Museum National D'Histoire Naturelle117, s. 1-112118-9773

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