THE SESSILE BARNACLES. 41 



SOUTH ATLANTIC SPECIES. 



V. gibhosa Hoek, east of Patagonia, 1,863 meters. 



F.witm Hoek, south latitude 70°, west longitude 80° 48', 555 

 meters. 



F, incerta Hoek, south latitude 32° 34', west longitude 13° 5', 

 2,565 meters. 



V. quadrangularis Hoek, south latitude 35° 39', west longitude 50° 

 47', 3,240 meters. 



INnO-PACIPIC SPECIES. 



V. sulcata Hoek, near the Kermadec Islands, 950-1,105 motors. 



V. nitida Hoek, Malay Ai'chipelago, 915 motors. 



V. plana Gruvol, off Andaman Islands, 380-405 motors. 



V. cristallina Gruvel, off iVndaman Islands, 768 meters. 



VERRUCA HOEKI Pilsbry. 



1907. Verruca hoel-i PihsBnr, U. S. Nat. Mus. Bull., No. 60, p. 11?., pi. 11, figs. 

 4, 5, 6. 



Type.— Cat. No. 1493, U.S.N.M. 



Type-locality. — Albatross station 2750, Anegada Passage, in 496 

 fathoms, bottom temperature 44°. 5 F. 



In addition to the pubhshed description it may be noted that the 

 basal edge of the wall is thin. There seems to be a very thin cal- 

 careous lining in the cliitinous base. 



Cinus i has subequal, rapidly tapering rami. In cirrus ii the ante- 

 rior ramus is obtuse and a httle shorter than the other. The caudal 

 appendages are as long as the fu*st joint of the pedicel of cirrus vi, 

 0.6 mm., and one-fifth as long as cirrus vi. Penis is 0.5 mm. long. 

 The posterior cirri have segments with three pairs of spines, the 

 distal pair very long. 



Verruca longicarinata Gruvel, from the Sargasso Sea in 3,432 meters 

 depth, resembles V. hoelci, but differs by having two contiguous, pro- 

 jecting, articular ribs on the movable scutum; the movable scutum 

 and tcrgum are larger and narrower; the shape of the fixed scutum is 

 different; and the suture adjoining the fixed tergum is sinuated, not 

 straight as in V. lioeki. 



V. ohliqua Hook, V. erecta Gruvel, and V. plana Gruvel also belong 

 to the same group of smaU, compressed, inornate species. 



VERRUCA RATHBUNIANA, new species. 

 Plate 7, figs. 2, 2a, 2b. 



Type.— Cat. No. 11026, U.S.N.M. 



Type-locality. — jilbaiross Station 2572, southeast from Cape Cod, 

 40° 29' north; 66° 04' west, in 1,769 fathoms, gravel ooze; bottom 

 temperature 37°. 8 F. 



