THE BARNACLES TN THE U. S. NATTOKAI. MUSEUM. 



53 



the rostral latus is snmller, th. ru.inal lutus decidedly wider, and the 

 roof of the carina less rounded; yet were it not tor the wide geooraphic 

 separation of the two species I would he disposed to rauk the ^orth 

 AUantic species as a race or variety of S. Jfavunr. Neither S. no..- 



S. nov^zdandi^ has been reported from the Northeastern Atlantic 

 by M. Gruvel,« who so Identiiied three specimens taken 1^^ the 

 L.ame.r\n north latitude 88^ 8', west longitude 12 -^ ^^^^^ 

 2,500 meters. They ditfer in various minor details from Hoek s tj pe. 

 (Fig. 17.) 



SCALPELLUM CARINATUM Hoek. 



1888. S. carinaUua Hoek, < ladlenger Report, Cirripedia, i>. 7.1, pi. ni, f.-s. 7, 8. 

 Near Tristan da Cunlia, 1,000 fathoms. 



i...//^/...-Cat. No. 328T:>, U.S.N.M., ^(^«^'-^-^^:;f "^^^^^^^^ 



Cape Hatteras, north latitude 36° 45', west longitude .4 28 , in .81 



fathoms, on SccdpMuhi velutlmim. Also No. 



32876, U. S. N. M., Albatross Station 2111, otf 



Cape Hatteras, north latitude 35- 09' 50", west 



longitude 74- 57' 40", in 938 fathoms. 



The specimens measure 9 and 11.5 mm. 

 (No. 32872) and 7 mm. (No. 32876) in length 

 of capitulum. The peduncle is very short and 

 oblique. The tergum, in these American ex- 

 amples, is longer and narrower than in Hoek's 

 figured type. The rostrum is represented only 

 by a small nodale between the apices of the 

 rostral latera in No. 32876, but I can see no 



trace of it in the two specimens from the other . ^ ^ 



station It is a rather stout little species, with the roof of the carina flat 

 and rapidly widening. The individual from Station 2111 is figured, 

 to show the features of the American form. (Fig. 18.) 



SCALPELLUM PERLONGUM Pilsbry. 

 1907. Scalpellumperlongum Pilhbkv, Bulletin of the Burean of Fisheries, XXVI, 

 p. 198, pi. VI, fig. 12. 



7V/>^.-Cat. No. 32420 U.S.N.M. ^ • ,, r 

 T>/j>e-lo(rd'ty.-On Point Lomu Lighthouse, near San Diego, Cali- 

 fornia, in 639 fathoms. 



«Exped. Sci. dn Tra7ailleur et du Talisman, Cirrhipedes, p. 54, pi. n, figs, xu, 

 xiii, XV. 



a b 



Fig. 18.— Scalpelltm carina- 



TUM. a, LATERAL ANH, h. CARI- 

 KAL VIEWS X 5. 



