The annals and magazine of natural history : zoology, botany, and geology . d. It is in the form of along transverse slit on the ventral surface, having its lipsenclosed within an oval border of radiating cuticular ridges,as has been described and figured by Gedoelst (1916) in thecase of the type-species. In the male the tail (tig. 2) is 025-03 mm. long, and hasa fairly well-marked ventral flexure. There are no ala?.The spicules (fig. 2, S.) are unequal in length, measuring 96 Mr. H. A. Baylis on a new Species of respectively (in a straight line from base to tip) about044 mm. and 0*24 mm. The
The annals and magazine of natural history : zoology, botany, and geology . d. It is in the form of along transverse slit on the ventral surface, having its lipsenclosed within an oval border of radiating cuticular ridges,as has been described and figured by Gedoelst (1916) in thecase of the type-species. In the male the tail (tig. 2) is 025-03 mm. long, and hasa fairly well-marked ventral flexure. There are no ala?.The spicules (fig. 2, S.) are unequal in length, measuring 96 Mr. H. A. Baylis on a new Species of respectively (in a straight line from base to tip) about044 mm. and 0*24 mm. The caudal papillae are rather-large and conical. There are ten pairs, four preanal (fig. 2,J-JV) and six postanal (fig. 2, 1-6). The fourth preanalpair {IV) and the fifth postanal (5), counting from the tail-tip, are laterally placed. The second postanal pair (#) areactually dorsal in position. The body of the female narrows suddenly at the base ofthe tail. The anus opens in a transverse fold of the cuticle,which is followed by several wrinkles. The tail tapers to a Fig. Orossocephalus longicaudatus. Lateral view of the tail of the male,highly magnified. S., spicules; 1-6, postanal papillae ; I-IV, preanal papilla. fine point, and is 1*7 mm. to 1*9 mm. long. The position ofthe vulva has not been made out with certainty, but it isprobably very close to the anus. The uterus containsembryos in various stages of development, not always enclosedin an egg-membrane, and often of very large size, so that thespecies is evidently viviparous, like the type-species. The chief points in which this species differs from C, vivi- Crossocephalus from the Rhinoceros. 97 parus, according to the descriptions of v. Linstow (1899) andof Gedoelst (1916), are :— (1) The much greater length of the tail in the female. (2) The absence of a second, flattened pair of neck- papillee behind the cuticular collar bearing thelong ear-like papillae. (3) The absence of the six curved anterior spines (crochets
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Keywords: ., bookcentury1800, bookidser9annalsmaga, booksubjectnaturalhistory
