. Studies on marine ostracods : pt. 1, Cypridinids, halocyprids and polycopids. istal bristle of this joint, the two bristlesof the fom-th joint, the bristle of the sixtli joint and the a-bristle of the seventh joint are allcomparatively weak, subequal, short, of about the length shown in the figure mentioned; theirlength varies, however, to some extent, though only very slightly; they all have short, fine sensory bristle of the fifth joint is somewhat longer than the anterior side of the second andtliird joints. Of its thirteen sensory filaments the nine proximal ones are rather thi


. Studies on marine ostracods : pt. 1, Cypridinids, halocyprids and polycopids. istal bristle of this joint, the two bristlesof the fom-th joint, the bristle of the sixtli joint and the a-bristle of the seventh joint are allcomparatively weak, subequal, short, of about the length shown in the figure mentioned; theirlength varies, however, to some extent, though only very slightly; they all have short, fine sensory bristle of the fifth joint is somewhat longer than the anterior side of the second andtliird joints. Of its thirteen sensory filaments the nine proximal ones are rather thick — ofal)out the same thickness tliroughout — and long, being about a thiixl of the whole length ofthe bristle. The three folhnving filaments, situated at a considerable distance from the formerones, are much shorter and finer; their position relative to each other varies to some extent;sometimes they are scattered and sometimes situated very close together. The remaining one,situated at rather a long distance from the point, is exceedingly short. Of the bristles on the. :^S(; TACK SKOCSliFiUC. se^•eutll joint the b-bristle is moderately long, about equal to the length of the anterior sidesof the second to the fourth joints (about 19—20 mm. in specimens with a length of shell of mm.); it has five scattered, moderately long, sensory filaments- its distal third is withoutan\ sliort sensory filament such as is found on most of the other end bristles. The c-bristle issomewhat longer than the former one, about 2, mm., i. e. not quite so long as the wholeantenna; it has ten sensory filaments, nine rather l<mg ones and a very short distal one. Thef- and g-bristles of the end joint are subequal, very greatly lengthened, being about as long asthe whole shell or even somewhat longer (on specimens with a shell about 6,7 mm. long thesebristles had a length of from 6,8 to mm.); with scattered and moderately long filamentsvarying somewhat in number, sometimes s


Size: 1348px × 1853px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1920, booksubjectostraco, bookyear1920