. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. b I 101 * JD a 73 5H G Ol O Male •. Juvenile 200 i Size range selected 150- Male X <u Jt • TJ 9 0 .5 • * • 73 100- °» • • • • • 0 T3 O s o o • • 0 o Oo ° o C o* 00ooo°o* O 50- • ^ " o °ta°00» S0 o» o v Female o n nDQ? O O Ao Juvenile n . 10 20 30 40 50 Dry body wall mass (g) Figure 2. Psolus fabricii. The relation of the number of germinal tubules (A) and of germinal tubules length (B) to dry body wall mass for juvenile and adult males and females in May 1988 (n = 132). (C) The relation of the gonadal index to dry bo
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. b I 101 * JD a 73 5H G Ol O Male •. Juvenile 200 i Size range selected 150- Male X <u Jt • TJ 9 0 .5 • * • 73 100- °» • • • • • 0 T3 O s o o • • 0 o Oo ° o C o* 00ooo°o* O 50- • ^ " o °ta°00» S0 o» o v Female o n nDQ? O O Ao Juvenile n . 10 20 30 40 50 Dry body wall mass (g) Figure 2. Psolus fabricii. The relation of the number of germinal tubules (A) and of germinal tubules length (B) to dry body wall mass for juvenile and adult males and females in May 1988 (n = 132). (C) The relation of the gonadal index to dry body wall mass (n = 132) in May 1988. The bracket indicates the size range used for gonadal index de- terminations. Results Gonadal morphology and si:e at sexual maturity The gonads of Psolus fabricii consist of a large number of rarely branched germinal tubules distributed through- out the peri visceral cavity (Fig. 1C, D). The tubules join at a single gonoduct which exits through a gonopore lo- cated between the feeding podia (Fig. IB). The number of tubules is greater for males than for females (Fig. 2A, Z test, P ). In some very large males and females, the terminal ends of some tubules were necrotic, and at times these ends were found floating free in the coelomic fluid. The size of the gonad at sexual maturity was determined from the 132 individuals collected on 4 May 1988 (Fig. 2C). Gonadal tubules were present in every individual examined that had a dry body wall mass of at least g. 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 resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods H
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
