Brachyura and Anomura of Puget Sound — KNUDSEN 
5 
LABORATORY FACILITIES: The Pacific Lu- 
theran University facility consisted of a very 
large walk-in cooler with a system that main- 
tained room temperature isothermally with 
Puget Sound water. Aerated glass aquaria filled 
with sea water were set up in this cold room. 
The room was partitioned off with a completely 
light-proof curtain, and independent lighting 
systems with time clock controls were set up on 
either side of the room. Aquarium heaters were 
employed when higher than room temperatures 
were desired. Thus it was possible to control 
the length of "daylight” and the tank tempera- 
ture so that many environmental factors could 
be altered within each aquarium. 
The Point Defiance facility consisted of nine 
BRACHYURA AND CRABLIKE ANOMURA OF SOUTHERN PUGET SOUND 
(List Not Complete) 
Species 
Hemigrapsus nudus ( Dana ) 
Hemigrapsus oregonensis ( Dana ) 
Remarks 
Brachyura-Grapsidae 
Very common. 
Very common. 
Xanthidae 
Lophopanopeus bellus bellus (Stimpson) 
Common. 
Cancer productus Randall 
Cancer magister Dana 
Cancer gracilis Dana 
Cancer oregonensis ( Dana ) 
Telmessus cheiragonus (Tilesius) 
Chionectes bairdi Rathbun 
Hyas lyratus Dana 
Oregonia gracilis Dana 
Pugettia gracilis Dana 
Pugettia producta ( Randall ) 
Scyra acutifrons Dana 
Cancridae 
Common. 
Common. 
At Titlow Beach, rare. 
Majidae 
University of Puget Sound, dredged 18 fathoms. 
University of Puget Sound collection, dredged. 
Not numerous. 
Common, but not numerous. 
Common, but not numerous. 
Common, but not numerous. 
Anomura-Porcellanidae 
Abundant in restricted localities. 
Not abundant. 
Not abundant. 
Lithodidae 
Petrolisthes eriomerus Stimpson 
Pachycheles rudis Stimpson 
Pachycheles pubescens 
Cryptolithodes typicus Brandt 
Haplogaster mertensii Brandt 
Lopholithodes foraminatus (Stimpson) 
Phyllolit bodes papillosus Brandy 
One specimen, Tacoma Narrows. 
Not common, restricted. 
Dredged by Point Defiance Aquarium. 
Very rare. 
