96 CALIFORNIA ACADEMY OF SCIENCES. 



opistliomelas, from twelve out of fourteen individuals 

 shot of the Dark-bodied Shearwater, P. griseus, from 

 five out of six individuals shot of the Pink-footed 

 Shearwater, P. creatopus, from a single specimen shot 

 of P. hidleri, from a single specimen shot of P. tenui- 

 rostris, and a single specimen, probably straggler, from 

 a Short-tailed Albatross, Diomedea albatrus (all the 

 birds from the Bay of Monterey, California). The 

 species was described from Puffi,nus opisthomelas (same 

 locality). 



This species and Lipeurus angusticeps Piaget (Les 

 Pediculines, p. 306, pi. xxv, fig. 4) from Thalassichoma 

 leachi, and Lii^eurus abnorniis Piaget (Supplement, p. 

 65, pi. vii, fig. 2) from Puffinus major, are closely 

 related. There is a regular sequence in size from 

 angusticeps through diversus to abnormis. It may be 

 suspected that we have to do with one species of great 

 variation in size; but the diagnostic characters of the 

 three species are sufficiently important to justify the 

 separation of the forms, 



Lipeurus densus Kellogg, 



New Maliophaga II, 1896, p. lU, pi. vii, figs. 1 and 2. 



Two females and a male from a Short-tailed Albatross, 

 Diomedea albatrus (Bay of Monterey, California). Types 

 taken from Diomedea albatrus and D. nigripes (see Kel- 

 logg, Maliophaga from Birds of Panama, Baja Cali- 

 fornia and Alaska, in New Maliophaga III, p. 28, 

 pi. iii, fig. 2). These specimens fully confirm the 

 specific idendity of the female described in New Malio- 

 phaga II, p. 114, and the male described in New Malio- 

 phaga, III, p. 28. The females now taken are almost, 

 if not quite, as large as the male, and they are also 

 quite as fully blotched and colored. 



