ON A COLLECTION OF POLYCHAETA FROM SOUTHERN CALIFORNIA By E. and C. Berkeley At intervals during the past few years Prof. G. E. ^lac-Ginitie, of the Kerckhoff jNIarine Laboratory, Corona Del Mar, California, has sent us specimens of Polychaeta collected by him in the vicinity of his laboratorv^, or at points not more than a few miles distant. This is the source of most of the material described in this paper. In addition some of the specimens were collected by Dr. MacGinitie at other localities in Southern California. Yet others by Dr. W. G. Hewatt, of the Texas Christian University, at Santa Cruz Island during the summer of 1939 and kindly sub-mitted by him to us for report. Forms taken both intertidally and by dredge are included. Notes indicating the depth of dredg-ing operations did not always accompany the specimens, but the depth is given in the following pages when known and the locality at which each species was collected is stated unless this was Corona Del ]\Iar or the vicinity If no statement to the contrsLty appears the species under disctission in the notes which follow was collected intertidally. The collection comprises 154 species. Thanks to the pioneer work of Johnson, ]\Ioore and Chamberlin and, more recently, to that of Treadwell, Hartman and others, the polychaete fauna of the Californian coast is fairly well known. Nevertheless the present collection contains 45 species, or varieties, new to the coast, of which 9 are new to science. Types of the new species and varieties are in the authors' collection. The following is a complete list of the species represented; those we believe to be new to California are indicated by an asterisk : APHRODITIDAE Aphrodite armifera Moore Aplirodite brevitentaculata Essenberg Aphrodite ref2ilgida Moore POYXOIDAE Lepidonotus coelorus Moore Thormora {Lepidonotus) johnstoni (Kinberg) Harmothoe imbricata CLinne) Harmothoe hirsuta .Johnson *Harmothoe lunulata (Delle Chiaje) *Malmgrenia nigralba Berkeley Halosydna insignis Baird Halosydna johnsoni (Darboux) Lepidametria gigas (.Johnson) Arctonoe vittata (Grube) Arctonoe pulchra (Johnson) 16
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