Report On the Chaetognatha Collected By the United States Fisheries Steamer Alb
Report On the Chaetognatha Collected By the United States Fisheries Steamer Alb
Ellis Le Roy Michael
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+3. 5! +2 +2 10-10 11-12 12-13 0-7 Mi M 7-6 10-11 7-8! 10-11 6-6 8-8 13-13 12-12 12-13 11-12 10- 9 i All measurements made in \ * Per cent of posterior fin in front of tail-septum. Distribution. S. Pulchra was collected from 23 stations, or from exactly 50 per cent of those at which chaetognaths were taken. Of these only 5 were mesoplanktonic stations, and 14 of the remaining 18 were surface stations. There can be no question, therefore, that the species is typical of the upper epiplankton in t...he Philippine region. Its northernmost record of capture during the Philippine expedition is in the China Sea, near Hongkong, 20 58' north and 120 3' east; its southernmost record is in Buton Strait, 5 36. 1' south and 122 7. 6' east; its easternmost record is in the Gulf of Tomini, Celebes, 125 17. 1' east and 1 13. 2' north; and its westernmost record is in Macassar Strait, 118 50' east and 2 19. 5' south. The largest number (128 + ) was taken August 11, 1909, at 7. 49 in the after- noon by a 0000 grit-gauze net towed on the surface between Siquijor and Bohol Islands, at 9 27.
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