United States National Museum

162 Pages·2008·9.31 MB·English

SMITHSONIAN
INSTITUTION
MUSEUM
O F
NATURAL
HISTORY

UNITED STATES NATIONAL MUSEUM BULLETIN 278
The
Caprellidae
Amphipoda)
(Crustacea:
of the
Western North Atlantic
JOHN McCain
c.
Research Associate, Department of Oceanography, Oregon State University
SMITHSONIAN INSTITUTION PRESS
WASHINGTON,
D.C.
1968
Publications of the United States National Museum
The scientific publications of the United States National Museum include two
series, Proceedings of the United States National Museum and United States
National Museum Bulletin.
In these series are published original articles and monographs dealing with
the collections and work of the Museum and setting forth newly acquired facts
in the field of anthropology, biology, geology, history, and technology. Copies
of each publication are distributed to libraries and scientific organizations and
to specialists and others interested in the various subjects.
The Proceedings, begun in 1878, are intended for the publication, in separate
form, of shorter papers. These are gathered in volumes, octavo in size, with
thepublication date ofeachpaperrecordedinthe table ofcontents ofthe volume.
In the Bulletin series, the first of which was issued in 1875, appear longer,
separate publications consisting of monographs (occasionally in several parts)
and volumes in which are collected works on related subjects. Bulletins are
either octavo or quarto in size, depending on the needs of the presentation.
Since 1902, papers relating to the botanical collections of the Museum have been
published in the Bulletin series under the heading Contributions from the United
States National Herbarium.
This work forms number 278 of the Bulletinseries.
Frank A. Taylor
Director, United States National Museum
U. S. GOVERNMENT PRINTING OFFICE
WASHINGTON: 1968
ForsalebytheSuperintendentofDocuments, U.S. Government Printing Ofllce
Washington,D.O.20402-Price70cents(papercover)
1
Contents
Page
Acknowledgments vi
Introduction 1
Taxonomic section 2
Taxonomic characters 2
Illustrations and measurements 6
Key to the Caprellidae of the western North Atlantic 6
Aeginella spinosa Boeck (figs. 2, 3, 54) 8
Aeginina longicornis (Kr03'er) (figs. 4-7, 54) 13
Caprella andreae Mayer, new rank (figs. 8, 9, 55) 19
Caprella bermudia Kimkcl 22
Caprella danilcvskii Czerniavski (figs. 10, 11, 55) 22
Caprella equilibra Say (figs. 12, 13, 55) 25
Caprella linearis (Linnaeus) (figs. 14, 22, 51) 30
Caprella longimanus Stimpson 33
Caprella penantis Leach (figs. 15, 16, 51) 33
Caprella sanguinea Gould 40
Caprella scaura Templeton (figs. 17, 18, 55) 40
Caprella septentrionalis Kr0yer (figs. 19-22, 51) 44
Caprella unica Mayer (figs. 23, 24, 55) 49
Deutella californica Mayer (fig. 52) 54
Deutella mayeri Stebbing (figs. 25, 26, 52) 54
Fallotriiella biscaynensis, new genus, new species (figs. 27, 28, 53) 58
Heniiaegina minula Mayer (figs. 29, 30, 50) 61
Hemiproto wigleyi, new genus, new species (figs. 31, 32c-e, 50) 65
Luconacia incerta Mayer (figs. 33-35, 52) 68
Mayerella limicola Huntsman (figs. 36, 50) 73
Maycrellaredunca, newspecies (figs. 37, 38, 50) 75
Meiaprotclla hummelincki, new species (figs. 39, 40, 50) 78
Paracaprella pusilla Mayer (figs. 32a-b, 41, 42, 53) 82
Paracaprella tenuis Mayer (figs. 43, 44, 53) 86
Pariambus typicus f. cumana Mayer 89
Phtisica antillensis (Mayer) (figs. 45, 54) 89
Phtisica marina Slabber (figs. 46, 47, 54, 56) 90
Proaeginina norvegica (Stephensen) (figs. 48, 54) 97
Pseudaeginella antiguae Barnard 100
Ecology 100
Zoogeography 10
Relationship between the amphipod suborders Gammaridea and Caprel-
lidea 107
Literature cited 112
V
Acknowledgments
I am indebted to many persons for study material of caprellids;
to them I offer my sincere gratitude. In particular I should like to
thank Dr. Torben Wolff (Universitetets Zoologiske Museum, Copen-
hagen) for lending me many of Mayer's types, without which the
value of this paper would be greatly diminished. I am grateful to
Dr. Roland Wigley (Bureau of Commercial Fisheries Laboratory,
Woods Hole) for the use of his caprelUd collections by the R,V Gosnold
from the entire Atlantic coast of the United States. These provided
invaluable information on the distribution of many species and
contributed several newrecords and a new genus. To Dr. P. Wagenaar
HummeUnck (Zoologisch Laboratorium, Utrecht) special thanks are
due for making available his collection of the virtually unstudied
West Indian capreUids. Dr. E. L. Bousfield (National Museum of
Canada, Ottawa) has aided a great deal by lending me his collection
from the Atlantic coast of the United States and by making helpful
suggestions diu*ing this research.
Drs. T. E. BowTiian, H. H. Hobbs, Jr., and F. A. Chace, Jr. of
the Division of Crustacea at the Smithsonian Institution were es-
pecially helpful by reviewing the manuscript and acting as members
of my consultative committee at The George Washington University.
This study was made possible by a grant from the Smithsonian
Institution Research Foundation and by a grant-in-aid-of-research
from the Society of Sigma Xi.
VI