THE BARNACLES IN THE U. S. NATIONAL MUSEUM. 85 



PCECILASMA KiEMPFERI LITUM, new subspecies. 

 Plate VI, figs. 1, 2. 



Tijpe.—C2X. No. 32902, U.S.N.M. 



Type-locality. — U, S. Fish Commi.ssion .steamer FUli Ilairh Station 

 7512, Gulf Stream oti' Fowey Rooks Light, Cape Florida, J^TO fathoms. 



The capitulum is equilateral, somewhat less swollen than the Japa- 

 nese P. Txxmpferl examined. Scutum and tergum have distinct radial 

 striffi and very fine, close growth-lines. The ridge from umbo to apex 

 of the scutum is well defined, but that to the tergo-carinal angle is 

 barely indicated. The base of the scutum is about three-fifths the 

 length of the tergum. The occludent margin is very convex in its 

 upper half, the area in front of the ridge running to the apex being 

 wider than in P. JcxuipferL Internally each scutum has an umbonal 

 tooth and a narrow but rather high and sharp straight basal ridge. 

 The tergum is shorter than in P. hsempferi^ barely half as long as the 

 scutum. 



Length of capitulum 12, width 6.8, diameter 3.3 mm. Length of 

 carina 7.8, of peduncle 5 mm. 



The mouth parts and cirri closel}^ resemble those of Japanese 

 P. Txsempferi. 



PCECILASMA KiS^MPFERI NOViEANGLIiE, new subspecies. 



Plate VI, figs. 13, 14. 



Type.—i^2it. No. 9032, U.S.N.M. 



Type-locality. — LT. S. Fish Commission Station 1120, off Marthas 

 Vineyard, 19-1 fathoms, on carapax of Eupag ul'uh politnx. 



\a\x^'&v \\vA\\ P. Tipeinpferi; the capitulum equilateral. The scutum 

 has a strong ridge running from the umbo to the apex, and another to 

 the tergo-carinal angle. The basal margin is veiy short, less than half 

 the length of the tergum. It is sculptured with distinct radial stria? and 

 growth- wrinkles. 



Length of the capitulum IT, breadth 9.7, diameter 5.75 nmi. Length 

 of the carina 12, of the peduncle 9 mm. 



In P. I'xmpferi and aurantia there is no distinct ridge from the 

 umbo to the tergo-carinal angle of the scutum, and the base is longer. 



A very small example, No. 9019, from Albatross Station 2115, is 

 probably referable to the above subspecies. It occurred on Lithodes 

 agassizii. 



PCECILASMA INyEQUILATERALE, new species. 



Plate VI, figs. 0, 7, 8, 11, 12. 



r^/>6'.— Cat. No. 12899, U.S.N.M. 



Type-locality.— Albatross Station 2744, 38^ 35' north latitude, 73° 

 05' 15" west longitude, 554 fathoms. 



