. Fig. 67. Iphimediella nodosa (Dana), a. General view, b and c. Right and left mandibles respectively, d. Telson. Antenna 1, 1st joint with two very short teeth on inner distal margin, 2nd joint also with one very short tooth on inner upper apex. Upper lip longer than broad, incised, but not deeply (not so deeply as the telson). Mandible, cutting edge with numerous graduated teeth, secondary cutting-plate in left mandible only, broad, multidentate, no spine-row or molar (cf. Delia Valle, pi. lviii, fig. 89). Maxilla 1, palp rather strong (cf. Delia Valle, pi. lviii, fig. 90). Maxilliped, 2nd
. Fig. 67. Iphimediella nodosa (Dana), a. General view, b and c. Right and left mandibles respectively, d. Telson. Antenna 1, 1st joint with two very short teeth on inner distal margin, 2nd joint also with one very short tooth on inner upper apex. Upper lip longer than broad, incised, but not deeply (not so deeply as the telson). Mandible, cutting edge with numerous graduated teeth, secondary cutting-plate in left mandible only, broad, multidentate, no spine-row or molar (cf. Delia Valle, pi. lviii, fig. 89). Maxilla 1, palp rather strong (cf. Delia Valle, pi. lviii, fig. 90). Maxilliped, 2nd joint of palp slightly expanded distally, but scarcely produced (cf. pacifica, Stebb., 1S88, pi. lxxi, or 1906, fig. 55). Peraeopods 3-5, 2nd joints broadly expanded, hind margin with a short point at upper angle, and a stronger one at lower angle in peraeopod 5, but only a mere indication in peraeopods 3 and 4. Uropod 2, outer ramus two-thirds length of inner ramus. Remarks. This specimen reopens the question of the identity of echinata, Wlkr., nodosa, Dana, and nodosa, Stebb. In spite of the complete absence of denticles on peraeon segments 4-6, and the absence of a lateral carina (imbrication) even on segments 5-7,
Size: 2874px × 1740px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
