. Bulletin - United States National Museum. Science. CAPRELLIDAE OF WESTERN NORTH ATLANTIC 105. ⢠Fallotritella biscrnpicn ⢠Pamcapnila imsilla â Paracaprella tenuis J. ⢠Previous record ONev) record, ,^/^U m Figure 53.âDistribution records of Fallotritella biscaynensis, Paracaprella pusilla, and Paracaprella tenuis in the western North Atlantic. The distribution of Paracaprella tenuis is interesting since it shows the disjunct distribution pattern which Hedgpeth (1953) cites for Littorina irrorata and several other organisms. Hedgpeth points out that this disjunct distribution arose during
. Bulletin - United States National Museum. Science. CAPRELLIDAE OF WESTERN NORTH ATLANTIC 105. ⢠Fallotritella biscrnpicn ⢠Pamcapnila imsilla â Paracaprella tenuis J. ⢠Previous record ONev) record, ,^/^U m Figure 53.âDistribution records of Fallotritella biscaynensis, Paracaprella pusilla, and Paracaprella tenuis in the western North Atlantic. The distribution of Paracaprella tenuis is interesting since it shows the disjunct distribution pattern which Hedgpeth (1953) cites for Littorina irrorata and several other organisms. Hedgpeth points out that this disjunct distribution arose during the interglacial periods of the Pleistocene when Florida was submerged and counter currents probably arose across the shoals which "made possible the dispersal of northern species into the Gulf of Mexico . . ". Hedgpeth (1953) states that the conditions are such in the northern Gulf of Mexico to allow mixing of temperate and tropical faunas with a low number of endemic species. This general statement is true for the Caprellidae since no northern Gulf caprellid is endemic and that area receives contributions from both the temperate and tropical 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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