Table 9. --I^umber and location of Gram.Dus ariseus observed 



Date 



Number seen 



— ocation 



1958 

 18 Mar. 



Many 



latitude 



Lo ngi tude 



BS-SO' N. , 124=15' W. 

 35 nniles SW Point Arena 



1959 



3 

 50t- 



2 

 lOi- 



5 



36°45' N. , 122°33' W. 



31 miles WNW Point Pines 

 35°12' N.. 122°04' W. 



60 miles W Morro Bay 

 35=44' N. , 122=43' W. 



55 miles SW Point Sur 

 41°42' N. , 125°33' W. 



62 miles W Crescent City 

 40°52' N. , 125°19' W. 



50 miles W Eureka 



1961 



18 Jan. 



10 Feb. 



20 Mar. 

 27 " 



75 35°13' N. , 122'=05' W. 



50 miles SVi Pt. Piedras Blancas 

 50 (plus right 35°27' N. , 121°48' W. 



whale dolphins 31 niiles SW Pt. Piedras Biancas 

 and pilot whales) 

 8 36°56' N., 123 = 39' W. 



60 m-iles WSW Pigeon Point 

 5 37°04' N. , 123°05' W. 



32 miles W. Pigeon Point 



one occasion in 1959, over 50 Ris so 's dolphins 

 were in a mixed school of nnore than 100 right 

 whale dolphins and over 30 pilot whales; on 

 another occasion, these dolphins were sighted 

 in connpany with pilot whales. In 1961 a mixed 

 school of Risso's dolphins, right whale dol- 

 phins, and pilot whales was seen. 



Hall and Kelson (1959) gave the range of G. 

 griseus as extending north in the Pacific to 

 Monterey. Our observations nnade in March 

 1959 extend the known range to Crescent City, 

 Calif., about 300 miles north of Monterey. 



Pseudorca crassidens . false killer whale 



(figi 



id 11) 



The false killer whale was not '.veil known to 

 the observers, and they '.vere hesitant to 

 identify them ixnless the animals were very 

 clearly seen. This species maybe more abund- 

 ant off California, and perhaps off Oregon and 

 Washington, than the records suggest. Pos- 

 sibly some ■■.vere identified as C-lobicephala, 

 '.vhich is similar in color and apoearar.ce. 



Table 10. --Number and location of Pseudorca crassidens observed 

 Date Number seen 



1958 

 13 Mar. 



2961_ 



8 Apr. 



i-.ocation 



Latitude Longitude 



36°04' N. , 122=07' W. 

 18 m.iles SW Point Sur 



40 = 47' N. , 124 = 41' W. 

 20 m.iles W Humboldt Bav 



17 



