6 University of Michigan 



(Hubbs); Santa Barbara (Jordan and Gilbert); El Estero at 

 Carpenteria (Hubbs). 



Ventura County: brackish lagoon at Ventura, at the mouth 

 of Ventura River (Hubbs). 



Los Angeles County: San Pedro Bay (Girard; Jordan and 

 Gilbert). 



Orange County: sloughs of Alamitos Bay (Hubbs). 



San Diego County: inclosed salt water lagoon at mouth of 

 San Diequito River, near Del Mar (Hubbs); Mission Bay, also 

 known as False Bay (collected by Scripps Institution for Biological 

 Research); San Diego Bay (Girard and later authors; young 

 collected by the writer in the sloughs of Dutch Flats on March 14, 



1913)- 



Lower California: small stream near mouth, near Rosario, 



just south of the international boundary (Rosa Smith). 



Measurements of holotype in hundredths of length to base of 



catidal (87 mm.): depth of body, 22; depth of caudal peduncle, 7; 



length of head, 37; snout, 10; orbit, 7; interorbital, 4.5; pre- 



opercular spine, from ridge, 8.5; suborbital, 3.5; maxillary, 17; 



mandible, 18; snout to occiput, 27; occiput to origin of dorsal, 



11; base of first dorsal, 19; height of first dorsal (longest ray), 10; 



base of second dorsal, 36; height of second dorsal, 14; length of 



caudal (to lower angle), 18; base of anal, 32; height of anal, 11 . 5; 



isthmus to anus, 36; length of pectoral (from upper angle), 25; 



length of pehic fin, 14. Fin-rays — dorsal, VII- 16; anal, 16 (counting 



the last soft ray as branched); caudal, 11 (9 branched); pectoral, 



18; ventral, I, 4. 



IV 



Leptocottus armatus australis is abundant throughout its known 

 range. The adults occur along the open shore; the young abound 

 in the bays and estuaries, especially during the spring months. 

 They live in salt, brackish, or fresh water, but apparently do not 



