184 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.21 



IMimulus acutifrons A. Milne Edwards, 1867, p. 264, type locality 



unknown, type in Paris Museum; 1878, p. 145. 

 Pugettia (Mimulus) foliata, Newcombe, 1893, p. 22; 1898, p. 76. 

 Pugettia foliata, Rathbun, 1894, p. 72. 



Type: Male cotype, without chelipeds or legs, M.C.Z. No. 1244. 



Type locality: Off Monterey, California; taken from the stomachs 

 of percoid fishes ("Cabesones") ; A. S. Taylor, collector. 



Localities subsequently reported, with collectors: Alaska: Off 

 Imagnee Pinnacle, Captains Bay, Unalaska, 8-20 fathoms, W. H. Dall 

 (Rathbun, 1894). 



British Columbia: Queen Charlotte Islands: Louscoone Bay and 

 Houston-Stewart Channel near Rose Harbor, Moresby Island (Hart) ; 

 Vancouver Island: Esperanza Inlet, Nootka and Clayoquot Sounds 

 (Hart) ; Clayoquot Sound (Newcombe) ; Ucluelet, Geological Survey 

 of Canada (Rathbun, 1925) ; Barclay [Barkley?] Sound, Albatross 

 (Rathbun, 1894). 



California: Mendocino, A. Agassiz (Rathbun, 1925) ; Monterey 

 Bay, 5-12 fathoms (Weymouth), H. Heath (Rathbun, 1925); 

 Monterey, A. S. Taylor (Stimpson), H. Hemphill (Rathbun, 1894) ; 

 Pacific Grove, J. C. Brown, T. S. Oldroyd (Rathbun, 1925). 



Atlantic analogue: None. A Pacific boreal species. 



Diagnosis: Breadth of carapace equaling or exceeding length; lateral 

 expansions leaflike, the posterior overlapping the anterior at lateral fis- 

 sure. Rostral horns short, narrowly separated. Postorbital tooth small, 

 set off by a fissure from preorbital. Male first pleopod with flared apex, 

 pointed tip and opposing grooved projection of equal length; an inter- 

 vening lobe. 



Description: Carapace flattened and marked with several undula- 

 tions ; median region tumid and bearing two small, obsolescent tubercles, 

 occasionally with two rows of curved setae in front of them. Rostral 

 horns flattened, with convex outer margins, the notch between them 

 narrowly triangular and setose. On the upper side of the rostrum two 

 double rows of curved setae. Preorbital tooth large, triangular, acute; 

 postorbital small and pointing obliquely downwards, and separated by a 

 fissure from the preorbital tooth. The lateral expansions of the carapace 

 a little reflexed, and the margin behind the incision nearly twice the 

 length of that in front. The anterolateral and posterolateral angles wide 

 and the latter somewhat produced. An obsolescent tubercle on the 

 posterior part , of the branchial region. Pterygostomian regions with 

 several blunt teeth. Peduncle of antennae about reaching tip of rostrum. 



