164 TRANSACTIONS OF THE [fEB. 8^ 



Mya truncata, Saxidomus, Tapes staminea, Schizothaerus^ 

 nuttalli, Solen, Dendraster. 



Three species of Eupagurus are common. In all these the 

 right arm appears longer, unless it happens to be regenerating, 

 in which case misleading observation may easily be made. 

 Parasitic forms include Argulus^ found on the gills of the sun- 

 fish, and Argeia on Crangon and Eupagurus alaskensis. Sac- 

 culina was found (Dana) on Crangon munitus. 



Part III. Pelagic Forms. 



In this category may be mentioned a black and yellow free 

 swimming Nereis, the Heteropod Pterotrachea, the nudibranch 

 Denc^rono^ MS, various ctenophors and jelly fishes. In the pelagic 

 tow, beside numerous diatoms, may be mentioned a large Appen- 

 dicularia, Evadne, Sagitta (with discontinuous fin), and exceed- 

 ingly abundant hj^lro-medusae. A number of Octopus were 

 brought to the laboratory by the local fishermen. Especially to 

 Mr. Joseph Gates are we indebted for much valuable material. 



Part IV. Cape Flattery and Neah Bay. 



The bases of the rocky cliffs lining the exposed shores of the 

 western coast are riddled and undermined b}' the boring-clam 

 Pholadidea. Receding tides leave a deeply fissured rocky 

 bottom, crossed by ragged intersecting ledges. This habitat 

 was characterized by a very different fauna from the glacial drift 

 region about Port Townsend, and littoral collections produced 

 as representative types, capable of rough usage, Gryptochiton 

 stelleri, Kotherina, Mopalia, Fissurella, Pollicipes, Strongy- 

 locentrot us and Toxopnewstes? The annelids are not abundant 

 except as ectoparasites {Holosydna on Fissurella, Polynoids 

 on Holothuria californica and Dermaster). Phymosoma, a 

 gephyrean genus, associated with coral islands,* is especially 

 abundant. The eggs of this form and of Mopalia were fer- 

 tilized artificalU'. Stylaroides was found under rocks. 



Dredging material was represented by the attached holothurian 

 form Psolus in great abundance, by single specimens of Grypto- 

 lithodes and Dentalium. Large orange patches of Noctiluca, 

 locally known as "whale feed," are found tenor fifteen miles out 

 to sea. 



The chief interest in this region centers in its resources for 

 embryological material, and its rich cryptogamic flora. 



•Shipley, Quart. Journal of Mic. Sci., Vol. 32, p. 120. 



