606 Evans: REPORT ON THE HEPATICAE OF ALASKA 
58. SCAPANIA IRRIGUA (Nees) Dumort. 
On moist earth. Mitrofania Bay (Rigg 1232); the specimens 
are scanty and not altogether typical. Previously reported by 
the writer (3, p. 312) and K. Miiller (11, p. 80). 
59. SCAPANIA NEMOROSA (L.) Dumort. 
On rocks and soil. Aats Bay (912, 938); Morse Cove (435); 
Port Alice (Foster 784). Previously reported by Rothrock (13, 
as Jungermannia nemorosa), Stephani (14, p. 97), and Miss 
Cooley (1, p. 247). 
60. SCAPANIA ULIGINOSA (Sw.) Dumort. 
In running water. Ketchikan (504). New to Alaska. 
61. SCAPANIA UMBROSA (Schrad.) Dumort. 
On logs and trees. Calder (827 in part); Ratz Harbor (305); 
Swifts Cannery (Foster 761). Previously reported by the writer 
(3, p- 312). 
62. SCAPANIA UNDULATA (L.) Dumort. 
On wet rocks and soil, often in running water. Ketchikan 
(3); Morse Cove (438); Port Malmsbury (978, 997); Port San 
Antonio (599); Snug Harbor (Rigg 1220); Swifts Cannery (688). 
Previously reported by the writer (3, p. 311} 4, p. 131 ) and Howe 
(8, p. 104). 
63. RADULA BOLANDERI Gottsche 
On rocks, trees, and logs. Augustine Bay (546, 580, 586, 
Foster 758); Deweyville (Foster 1123); Exchange Cove (260); 
Hidden Inlet (73); Ratz Harbor (297, 312); Shipley Bay (Foster 
788). Previously reported by the writer (3, Pp. 312; 4, p. 132). 
Whether the Radula arctica of Stephani (14, p. 98, pl. 3, f. 11) 
is to be considered a synonym of R. Bolanderi is still a matter of 
some doubt. R. arctica was based on sterile material collected 
by the Krause brothers at Chlowak and Chilcoot (No. 17). On 
the basis of Stephani’s original description and figure Howe (7, 
p- 159, footnote) suggests that it probably represents a juvenile 
condition of R. Bolanderi. Stephani, however, does not accept 
this suggestion and still maintains that R. arctica is a valid species 
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