. Fresh-water biology. Freshwater biology. 13(12) No cuticular ridge anterior and lateral to cloacal pore 14 14 (15) Behind cloacal pore sharp V-shaped ridge. Gordius villoti Rosa 1882. For female of this species consult 23 in this key. This species was described by Montgomery as G. aguaUcus. Several subspecies have been distin- guished. In the typical form the cuticula is marked with large light spots. Male up to 655 mm. long, mm. broad, equal in diameter throughout; both ends obtuse; no tirue areoles present. From Canada, New England, New York to South Carolina; westward to South Dakota,
. Fresh-water biology. Freshwater biology. 13(12) No cuticular ridge anterior and lateral to cloacal pore 14 14 (15) Behind cloacal pore sharp V-shaped ridge. Gordius villoti Rosa 1882. For female of this species consult 23 in this key. This species was described by Montgomery as G. aguaUcus. Several subspecies have been distin- guished. In the typical form the cuticula is marked with large light spots. Male up to 655 mm. long, mm. broad, equal in diameter throughout; both ends obtuse; no tirue areoles present. From Canada, New England, New York to South Carolina; westward to South Dakota, Montana, and California; south to Oklahoma, Texas and Mexico. Fig. 8j8. Gordius mlloii ^ ; ventral view of Various Acridiidae serve as hosts for this species. anterior and posterior ends of body. Magnified. Also found in Locustidae by H. G. May. (After Montgomery.) 15 (14) Cuticula behind cloacal pore without sharp, V-shaped ridge. 16 Paragoriius varius which might be confused here is readily distinguishable by the trun- cated anterior end. 16 (17) On each side of cloacal pore a longitudinal line of hairs. r^ ^^_ Gordius lineatus T-,eidy i&$i. For female of this species consult 28 in this key. Male up to 278 mm. long, mm. broad; very slender. Pale yellow or buff in color; areoles small. Perhaps only a young ,., J. ,. ^ form of G. villoti. Most of the specimens taken from springs. Fig. 839. Gordmshneatus $ ; j^g^ york, Pennsylvania, Maryland, Michigan, anterior and postenor ends, and surface view of cuticula. Mag- niiied. (After Montgomery.) 17 (16) No line of hairs along side of cloacal pore; head not obliquely trun- cated. 18 18 (21) Conical spicules behind cloacal aperture. 19 19 (20) Caudal lobes short, thick, and nearly Gordius densareolatus Montgomery 1898. For female of this species consult 29 in this key. Male up to 290 mm. long, mm. broad. Bodyrobust. Conical spines on ventral surface of caudal lobes. Color deep chocolate, with black ring about cl
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
