. Annual report. 1st-12th, 1867-1878. Geology. Fig. 62. Pig. 61.—Female claspers; 6 more peculiar to the pale race. an interesting phenomenon to see that the red normal Eubranchipus has a white and the ale prace a red furca. The transparent, greenish, Chirocephalus holmani and the whitish Streptocephalus ~wt texanus have also a red furca. The red Eubranchi- pus occurs in brownish, clear water, the others in tur- bid, milky water. It may be an assistance in copu- lation, i. e., to make the individuals more visible, or conspicuous. Spangenberg (in op. cit. page 10) makes it more than plausible t
. Annual report. 1st-12th, 1867-1878. Geology. Fig. 62. Pig. 61.—Female claspers; 6 more peculiar to the pale race. an interesting phenomenon to see that the red normal Eubranchipus has a white and the ale prace a red furca. The transparent, greenish, Chirocephalus holmani and the whitish Streptocephalus ~wt texanus have also a red furca. The red Eubranchi- pus occurs in brownish, clear water, the others in tur- bid, milky water. It may be an assistance in copu- lation, i. e., to make the individuals more visible, or conspicuous. Spangenberg (in op. cit. page 10) makes it more than plausible that the first (anterior) antennae. 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 Geological and Geographical Survey of the Territories (U. S. ); United States. General Land Office; United States. Dept. of the Interior. Washington, Govt. Print. Off.
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishe, booksubjectgeology
