Nematodes of the Order Rhabditida from Andalucía Oriental, Spain. The Genera Protorhabditis (Osche, 1952) Dougherty, 1953 and DiploscapterCobb, 1913, with Description of P. spiculocrestata sp. n. and a Species Protorhabditis Key.

A new species of the genus Protorhabditis is described from natural areas in the SE Iberian Peninsula. Protorhabditis spiculocrestata sp. n. is distinguished by its body length 387-707 mum in females and 375-546 mum in males, lip very low and flattened, stoma 14-22 mum long, female tail conical-elongate (48-100 mum, c = 6.4-8.3, c' = 4.8-7.5), phasmid near anus, male tail conical (20-27 mum, c = 18.3-22.3, c' = 1.4-1.5), bursa peloderan closed anteriorly and bears eight papillae (1+2+1+1+3), spicules 23-26 mum long, and gubernaculum 10-16 mum long. Diploscapter coronatus is also presented. Description, measurements and illustrations, including SEM photographs, are provided. A key to species of Protorhabditis is also given as well a compendium of their measurements.