. Bulletin - United States National Museum. Science. COPEPODS OF THE WOODS HOLE REGION 51 dopod of first leg 1-segmented, of second leg 2-segmented, of third and fourth legs 3-segmented; fifth legs lacking in female, present in the male, each 5-segmented, with rudimentary endopod. KEY TO THE SPECIES (BOTH SEISES) First antennae twice as long as body; spine on head pointed forward; exopod of first legs 2-segmented miles (p. 51) First antennae reaching little beyond caudal rami; spine on head pointed ventrally; exopod of first legs 3-segmented kruppii (p. 52) GAETANUS MILES Giesbrecht FlGUBE 31
. Bulletin - United States National Museum. Science. COPEPODS OF THE WOODS HOLE REGION 51 dopod of first leg 1-segmented, of second leg 2-segmented, of third and fourth legs 3-segmented; fifth legs lacking in female, present in the male, each 5-segmented, with rudimentary endopod. KEY TO THE SPECIES (BOTH SEISES) First antennae twice as long as body; spine on head pointed forward; exopod of first legs 2-segmented miles (p. 51) First antennae reaching little beyond caudal rami; spine on head pointed ventrally; exopod of first legs 3-segmented kruppii (p. 52) GAETANUS MILES Giesbrecht FlGUBE 31 Gaetanus miles Giesbrecht, Atti Accad. Lincei, Rome, ser. 4, vol. 4, sem. 2, p. 335, 1888; Fauna und Flora des Golfes von Neapel, vol. 19, p. 219, pis. 14, 36, 1892. Occurrence.—A single female taken in a vertical haul. Station 20069, Grampus, south of Georges Bank. Distribution.—North Atlantic (Far- ran) ; tropical Pacific (Giesbrecht); Malay Archipelago (A. Scott); be- tween British Isles and Iceland (With); South Atlantic (Cleve, Steb- bing); Gulf of Maine (Bigelow). Color.—Nothing is known with re- gard to the color of the living cope- pod; preserved specimens are quite transparent and yellowish horn-color. Female.—Spine on the head point- ing straight forward; first antennae more than twice the body length; spines at posterior corners of fifth seg- ment almost reaching the posterior margin of the genital segment; exopod of first legs with only 2 seg- ments ; inner margin of basipod of fourth leg with a semicircular row of 5 or 6 coarse setae or spines. Total length, 3^.3 mm. Male.—Unlcnown. Remarks.—This species may be recognized by the length of the first antennae and the presence of a frontal spine. The number of spines on the fourth basipod seems to be larger in Pacific than in Atlantic specimens. Although widely distributed it is found nowhere in any FiGUKE 31.—Oaetanus miles, female : a. Lateral; b, dorsal. Please note that these images are e
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