134 LAWEENCE M. LAMBE ON 



17. ATTU ISLAND. 

 Chichagof Harbour.— W. H. Dall, tjeach. 



Esperiopsis Quatsinoensis. 



Chondrocladia Alaskensis. 

 Attu Island.— W. H. Dall, beach. 



Halichondria panicea. 



Esperiopsis Quatsinoensis. 



Chondrocladia Alaskensis. 



Myxilla Behringensis. 



18. BEHRING ISLAND. 



Halichondria panicea.— (t^ . Grebnicski, fi fathoms and L. Stejneger, beach). 



Eumastia sitiens. 



Reniera rufescens.—Qi. Grebnitski, 6 fathoms). 



Esperiopsis Quatsinoensis (L. Stejneger, beach). 



Chondrocladia A laskensis. 



Myxilla Aniaknakensis (L. Stejneger, beach). 



Suberites concinnus (L. Stejneger, beach). 



Polymastia laganoides (L. Stejneger, beach). 



19. KAMTCHATKA. 



Rakovaya Buchta.— L. Stejneger (less than 10 fathoms). 



Reniera rufescens. 



AwATCHA Bay.— L. Stejneger (less than 10 fathoms). 



Halichondria panicea. 



20. ALASKA. 



Halichondria p>anicea.—(W . H. Dall, beach and U. S. Revenue Steamer " Corwin "). 



Euynastia sitiens.— (V. S. Revenue Steamer "Corwin"). 



Esperella helios. — (U. S. Revenue Steamer "Corwin"). 



Myxilla Amaknakensis.—{W . H. Dall). 



Phakellia ventilabrum.—(W. H. Dall, beach and U. S. Revenue Steamer "Corwin"). 



Suberites concinnus.— ÇW . H. Dall, beach). 



21. SANNAK ISLAND. 



Esperiopsis Quatsinoensis.— (W. H. Dall, 1877, beach also E. W. Nelson, 1877, beach). 

 Chondrocladia Alaske7isis.—(E. W. Nelson, 1877, beach). 



W. H. Dall. 



Esperiopsis Quatsinoensis (beach). 

 Myxilla Behringensis, (beach). 

 Suberites suberea. 



22. BELKOFSKY bay. 



23. SHUMAGIN ISLANDS. 



Unga Island.— W. H. Dall, beach. 



Halichondria panicea. 



Esperella adltœrens. 



Esperiopsis Quatsinoensis. 



Chondrocladia Alaskensis. 



Suberites suberea. 

 Unga Island and Sanborn Harbour, Nagai Island.— W. H. Dall, beach. 



Esperiopsis Quatsinoensis. 

 New Harbour, Unga Island.— W. H. Dall, beach. 



Esperella adhœrens. 

 Coal Harbour, Unga Island.— W. H. Dall. 



Halichondria panicea (8-9 fathoms, sand, stones also beach, extra low tide). 



Esperella adharens (3 fat homs, shingle). 



Esperiopsis Quatsinoensis (8-9 fathoms, sand, stones and beach, extra low tide). 



Suberites suberea (8-9 fathoms, sand, stones). 

 Round Island, Coal Harbour, Unga Island.— W. H. Dall. 



Suberites suberea (beach, neap tide). 

 Unga and Popof Islands.- W. H. Dall. 



Halichondria 2Mnicea (beach). 



Esperiopsis Quatsinoensis (beach). 



Chrondrocladia Alaskensis (beach). 



Suberites suberea. 



