Heligmonina praomyos Baylis, 1928

Durette-Desset, Marie-Claude & Digiani, Maria Celina, 2010, Taxonomic revision of the type specimens of Ethiopian Nippostrongylinae (Nematoda) deposited at the Natural History Museum of London, Zootaxa 2494, pp. 1-28 : 3

Heligmonina praomyos Baylis, 1928

( Table 2 )

The type material was made up of one male (slide 127) parasitic in the small intestine of one Praomys tullbergi n° 114 from Adu. It was in very poor condition. The left ala disappeared just anterior to the caudal bursa. The width of the body was 200 within the distal third, the left ala (120) included. From the same host Baylis described three males and one female of Heligmonella moennigi Baylis, 1928 (= Neoheligmonella moennigi (Baylis) Durette-Desset, 1971 .

The voucher material came from three Praomys tullbergi (n° 139, n° 175, and n° 72) from Adu. In P. tullbergi n° 139, only one male out of three (slide 129) was identifiable. In this male, the spicules were 370 long with a SpL/BL of 14.8%, which corresponds to Baylis’ data (spicules 330, 350 long and SpL/BL 13.4– 15.7%). In P. t u l l b e rg i n° 175, four males out of five (slide 130) were identifiable. Two males had spicules 310, 350 long and a SpL/BL of 9.8, 12.5%, similar to that of H. praomyos , and we identified them as this species. In the two other males the spicules were 800, 905 long with a SpL/BL of 16.7% and 22%. In addition, in these males the left lateral ala was poorly developed or not visible. These males were identified as Neoheligmonella moennigi ( Baylis, 1928) , the length of the spicules and the ratio SpL/BL being similar. In P. tullbergi n° 72 we identified the single female (slide 125) as H. praomyos , the left ala being visible.