62 BULLETIN 2 01, UNITED STATES NATIONAL MUSEUM 



SIRIELLA GRACILIS Dana 



Siriella gracilis Dana, 1852b, p. 658 ; 1855, pi. 44, figs, la-g, 2a-c.— G. O. Saks, 1884, 

 p. 41 ; 1885, p. 209, pi. 30, figs. 25-28.— Hansen, 1910, p. 31. 



Occurrence. — Philippine Islands: Albatross, Naso Point, Panay, 

 electric light, surface, 7 p. m., February 3, 1908, 1 immature female. 

 West coast of Central and South America: Albatross, Galapagos 

 Islands to Charles Island*, 1891, identified by A. E. Ortmann (1894) ; 

 H. J. Hansen (1912) identified specimens from Albatross stations 

 4592*, 4607*, 4619*, 4716*, 4720*, 4723*, 4725*, 4729*, 4733*. Hawai- 

 ian Islands : Albatross stations 3867*, 4009*, 4086*, all identified by 

 A. E. Ortmann (1905). 



Distribution. — An oceanic surface species widely distributed in the 

 tropical and subtropical parts of the Pacific and Indian Oceans. It is 

 not known from the Atlantic. 



SIRIELLA VULGARIS Hansen 



? Siriella suliiensis Czerniavsky, 1882a, p. 108 ; 1887, p. 29. 

 Siriella vulgaris Hansen, 1910, p. 34, pi. 3, figs. 2a-k. 



Occurrence. — Philippine Islands : The Albatross collected material 

 at several Philippine localities without station numbers, all at the 

 surface, by electric light : Nasugbu Bay Anchorage, January 21, 1908, 

 19 females, 9 males ; Jolo Anchorage, February 7, 1908, 4 females, 11 

 males; Romblon Anchorage, March 25, 1908, 1 female; Cataingan 

 Bay, Masbate, April 19, 1908, about 200 of both sexes ; Port San Miguel 

 Anchorage, Ticao Island, April 21, 1908, 2 females; Port Busin 

 Anchorage, Burias Island, April 22, 1908, 4 females ; Santa Cruz Har- 

 bor, Marinduque, April 23, 1908, 2 females; Mansalay Anchorage, 

 Mindoro, June 3, 1908, about 250 of both sexes, 11 specimens parasitized 

 by Dajus % siriellus G. O. Sars ; Looc Bay Anchorage, July 18, 1908, 

 17 females, 11 males; Port San Pio Quinto, Camiguin Island, Novem- 

 ber 10, 1908, 3 females and 1 male; Port Matalvi Anchorage, Novem- 

 ber 22, 1908, 5 females, 2 males ; Sablayan Bay Anchorage, Mindoro, 

 December 13, 1908, 11 males, 29 females; Tara Island Anchorage, 

 December 14, 1908, 2 males, 7 females; Endeavour Straight, anchor- 

 age between Bando and Endeavour Point, December 23, 1908, 1 male, 

 1 female; Capulaan Bay, Pagbilao, Chica Island, anchorage, Feb- 

 ruary 23, 1909, 8 males; Catanduanes Island, Cabugao Bay, June 9, 

 1909, 1 male, 10 females; Butauanan Island, June 12, 1909, several 

 hundreds of both sexes; Mahinog Anchorage, Camiguin Island, 2 

 males, 3 females ; Opol, Macajalar Bay, Mindanao, 20 males, 8 females ; 

 Talisse Island, East, November 9, 1909, about 200 of both sexes ; the 

 Albatross collected several hundreds of both sexes at Jolo Anchorage, 

 March 5, 1908 (no further data) ; additional specimens were taken 

 by the Albatross at stations 5233, 1 male; 5435, 4 males, 4 females; 



