108 



BULLETIN 93, UNITED STATES NATIONAL MUSEUM. 



U.S.F.C. 



Station. 



2939 

 4420 



Locality. 



Crescent City, Cal. i 



Monterey Bay, Cal 



San Pedro, Cal 



Long Beach, Cal 



Near Newport, Cal 



Near San Nicolas Island 



San Dipgo, Cal 



Near San Diego, Cal 



Santa Maria Bay, Lower Cal. 



Depth 

 (fath- 

 oms). 



Collector. 



Unknown 



Albatross 



W. M. Gabb.. 

 Mrs. Oldroyd. 



Albatross 



do 



Dr. Palmer... 



Albatross 



do 



Notes. 



Cat. No. 13111. 



Coll. A. N. S. P. 

 On Trophon. 



1 This locality, if authentic, carries B. c. padftcus well north of the greater part of its faunal associates 

 in southern California. The distribution of the species on the coast above Monterey needs further' 

 investigation. 



BALANUS CONCAVUS COOSENSIS Dall. 



1909. Balanus tintinnabulum 

 Bay, Oregon, U. S. Geol. 

 figs. 1, 6. 



coosensis Dall, The Miocene of Astoria and Cooa 

 Survey, Professional Paper No. 59, p. 138, pi. 19, 



This is a very large form from tlie Miocene of Coos Bay, Oregon, the 

 greatest diameter 50 mm. Parietes smooth; radii with oblique 

 summits, thereby agreeing with most forms of concavus, but differing 

 from B. tintinnabulum and B. concavus pacificus. The parietal tubes 

 of one of the type lot have no transverse septa. There are about 

 39 tubes in the rostrum. The radii are not porous. It is therefore 

 not related to B. tintinnabulum, which has not been found fossil in 

 America, and is represented in the recent fauna by quite different 

 forms. The opercular valves of B. c. coosensis have not been found, 

 so that the reference to B. concavus, though probable, is provisional. 



A rather strongly ribbed barnacle from the Lower Miocene or 

 Upper Oligocene of Ventura County, California, has been referred to 

 B. concavus by Kalph Arnold.^ It resembles B. c. glypto'poma exter- 

 nally, but the opercular valves and structure of the wall are unknown. 



BALANUS REGALIS, new species. 

 Plate 21, figs. 4, 4a. 



Type. — Cat. No. 43485, U.S.N.M., from Point Abreojos, west coast 

 of Lower California. Albatross, March 14 , 1911. 



A large, strong barnacle. The walls form a cone strongly bent 

 toward the rostrum. Parietes rather finely, irregularly ribbed ^nd 

 with large folds near the base. Color, from old rose to Vandyke red 

 and dalilia carmine, clouded with white, the sheath and interior pale 

 flesh-tinted. Aperture broadly ovate. 



The carina and carinal latera are closely united by linear sutures, 

 externally visible with difficulty. The other sutures are deep, narrow 

 clefts. Radii are extremely narrow, almost wanting, or represented by 

 irregular, roughened ledges, their summits very oblique, their edges 

 very irregularly crenulated, and not in contact with the broad, 



I U. e, Geol. Surv. BuU. 309, pi. 32, iig. 5. 



