. Bulletin. Natural history; Natuurlijke historie. 82 PEABODY MUSEUM BULLETIN 26 (T^. Figure 39. Conchoecia spinirostris Glaus, a, male first antenna, b, armature of male principal seta, c, capitulum of male frontal organ, d, right clasping organ of another male, more obliquely angled than that shown in 38g. e, penis. Scale at top right for b, at lower center for a, c, d, e. Scales in mm. single ones. The male right clasping organ is right-angled (Fig. 38g) or more obliquely angled (Fig. 39d) in different specimens. The longer bristle of the basal segment of the endopodite of the male second a
. Bulletin. Natural history; Natuurlijke historie. 82 PEABODY MUSEUM BULLETIN 26 (T^. Figure 39. Conchoecia spinirostris Glaus, a, male first antenna, b, armature of male principal seta, c, capitulum of male frontal organ, d, right clasping organ of another male, more obliquely angled than that shown in 38g. e, penis. Scale at top right for b, at lower center for a, c, d, e. Scales in mm. single ones. The male right clasping organ is right-angled (Fig. 38g) or more obliquely angled (Fig. 39d) in different specimens. The longer bristle of the basal segment of the endopodite of the male second antenna may have a couple of long hairs, as in other members of the Magna group (Fig. 38g). Both bristles of the first joint of the female endopodite have spinules (Fig. 38f). LENGTH. Glaus (1890) gave the length as mm. Skogsberg's (1920) males were mm long, his female specimens mm long. At Station "S", females were mm long, males mm long. COLLECTION DATA. C. spinirostris was one of the commonest, and in all proba- bility the most abundant, species at Station "S", males and females occurring throughout the year in the upper 500 m. Both Skogsberg and Granata and di Gaporiacco (1949) noted that males were found in greater numbers than females, but this was not the case at Station "S". In the samples taken at different depths, C. spinirostris was the most abundant species in the upper 200 m, but it also occurred in all the deeper hauls. The total numbers of C. spinirostris recorded from the 100 m depth series are listed in Table 3. Highest numbers of 4000/ 1000 m^ were obtained in February 1960 for the 100-200 m sample. In June 1959, slightly higher numbers, 1690/1000 m^ were present in the upper 100 m, than at. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemb
Size: 1455px × 1717px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiv, booksubjectnaturalhistory
