I36 CALIFORNIA ACADEMY OF SCIENCES. 



Docophoroides brevls Giglioli, Quart. Jour. Mic. Science, 1846, vol. iv, 



p. 18, pi. i, B, figs. 3, 4. 

 Lipeurus taurus Nitzsch, Giebel, Iusecta Epizoa, 1874, p. 234; Piaget, 



Les Pediculiues, 1880, p. 332, pi. xxxi, fig. 3. 

 Eurymetopus taurus Nitzsch, Tasckenberg, Die Mallophagen, 1882, p. 



183, pi. v, figs. 8, 8a. 



Many specimens, males, females and young, taken 

 from two specimens of the Short -tailed Albatross, Dio- 

 medea albatrus, shot on the Bay of Monterey, California. 

 Also found on two out of thirty specimens of the Pacific 

 Fulmar, Fulmarus glacialis vars. rodgersii and glufischa, 

 taken in the Bay of Monterey, California. This species 

 has been found by Nitzsch, Swinhoe, Dufour and Meyer 

 on Diomedea nigripes, exulans and brachyura. The spec- 

 imens taken by me differ in some slight details from 

 Taschenberg's careful description, notably in the longer 

 and narrower signature and in their much smaller size, 

 both males and females being less than three -fourths as 

 large as the specimens (Nitzsch's) measured by Taschen- 

 berg, and about three -fourths the size of Piaget's spec- 

 imens. The measurements of my figured specimens, as 

 compared with Taschenberg's measurements, are as fol- 

 lows (Taschenberg's figures in parentheses) : Male, body, 

 length 3.12 mm. (4.13 mm.), width 1.18 mm. (1.75 mm.) ; 

 head, length .9 mm. (1.25 mm.), width 1. mm. (1.52 

 mm.). Female, body, length 3.40 mm. (4.38 mm.), 

 width 1.5 mm. (1.62 mm.); head, length .95 mm. (1.25 

 mm.), width 1. mm. (1.56 mm.). Taschenberg's figures 

 are in bad shape; he evidently attributes to the male the 

 measurements of the female and vice versa, as he makes 

 the male the larger. In the above comparison I have 

 transposed his figures. Also he attributes to the male 

 ( = female) a thorax almost twice as long as that of the 

 female (=male)! This is an obvious error. Despite 

 the conspicuous difference in size and a few other minor 



