208 BULLETIN 201, UNITED STATES NATIONAL MUSEUM 



ACANTHOMYSIS SCULPTA (Tattersall) 



Figures 83-85 

 For a full diagnosis of this species refer to page 248. 



ACANTHOMYSIS COST ATA (Holmes) 



Figures 86, 87 



Mysis costata Holmes, 1900, p. 221, pi. 4, figs. 70-72.— Hansen, 1913b, p. 177, 



pi. 9, fig. 2a-d— Esterly, 1914, p. 15. 

 Neomysis costata Tattersaix, 1932b, p. 327, figs. 51-58. 



Occurrence. — California: Scorpion Harbor, Santa Cruz Island, 

 2 to 3 fathoms, June 29, 1939, 1 breeding female, 12 mm., 1 immature 

 female, 8 mm. ; during the survey of San Francisco Bay by the Alba- 

 tross, 1912-13, collections were made at stations H5099, 30 + specimens ; 

 H5101, 50+ specimens; H5128, 4 specimens; H5137, 2 specimens; 

 H5138, 4 specimens; H5140, 10+ specimens; H5146, 2 specimens; 

 H5147, 2 specimens; H5188, 15 specimens ; H5228, 7 specimens; H5300, 

 2 specimens. 



Figure 84. — Acanthomysis sculpta (Tattersall): a, Eye, X 40; b, antennal scale and peduncle, 

 X 40; c, fourth pleopod of male, X 40; d, telson, X 40. 



