30 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 125 
Family TANAIDAE 
Anatanais normani (Richardson) Nordenstam 
FIcure 4 
Locauities.—California: Catalina Island (Stations 64, 66); Ana- 
capa Island (Station 67); Santa Barbara Harbor (Station 68). 
Remarks.—Richardson (1905a, 1905b) described this species (as 
Tanais normani) from specimens collected at Monterey Bay, central 
California. It has been reported subsequently from British Columbia 
(Fee, 1926; Hatch, 1947). The author has collected it intertidally at 
Moss Beach, San Mateo County, central California. The present 
report extends its range considerably southward into southern | 
California. 
Tanais species 
Ficure 4 
Locauity.—Central California: San Pablo Bay (Station 87). 
Remarks.—The single tanaid taken in the north end of greater 
San Francisco Bay was mutilated too badly for specific identification. 
Antennae and gnathopods were missing and the head was damaged. 
The three pairs of pleopods and single branched uropod on a 5-seg- 
mented pleon are enough to determine that it belongs to the genus 
Tanas. Unfortunately, there is no tanaidacean material from San 
Francisco Bay or even published records of species in this area avail- 
able for comparison. 
Discussion 
IncipENcE.—In general, Isopoda and Tanaidacea are represented 
poorly in the buoy collection both in numbers of species and in 
frequency of occurrence. The 29 species collected represent a small 
fraction of the isopods and tanaidaceans known to occur in the 
regions surveyed. On the west coast, for example, Menzies and 
Barnard (1959) list 36 benthic species of Isopoda in southern Califor- 
nia, but only five were found on buoys in that region. Again, in the 
intertidal zone of central California, Menzies and Miller (1957) list 
56 isopod species belonging to the four suborders represented in the | 
buoy collection, but only eight species were taken from buoys in that — 
region. As for tanaidaceans, only one species of the six listed for | 
central California was collected from buoys. Finally, in the northwest 
Pacific, Hatch (1947) lists 45 flabelliferan, valviferan, and asellote 
isopods (no anthurideans), and seven tanaidacean species; but only — 
two isopod species and no tanaidaceans were taken from buoys in 
that region. 
As previously noted, isopods were collected from only about 25 — 
percent of the buoys sampled and tanaidaceans were found on less — 
