22 BULLETIN 60; UNITED STATES NATIONAL "MUSEUM. 



which he writes " may be regarded as typical." One of these is figured. 

 (Plate 1, tigs. 6, 7.) 



The plates have sculpture of indistinct growth-lines and radial stri^. 

 The umbo of the carina i.s at the upper fifth of the length of the plate, 

 measured along the curve. The rostrum i.s wedge-shaped as high as the 

 rostral latera. The latter are triangular, and project at the umbones. 

 The inframedian latus is wide, the width more than half the length, 

 with umbo median on the rostral border. The carinal latus projects 

 somewhat beyond the base of the carina. The scales, which compactly 

 cover the peduncle, are in 8 rows. The basal whorl of plates is only 

 slightly swollen. The capitulum of the specimen figured measures 6.8 

 mm. long. 



A form of S. siroemii^ shown in figs. 1 to 5, from St. Peters Bank, 

 No. 21.547, U.S.N.M., difl'ers by the higher rostral latera, the other 

 plates remaining nearly of the typical shape. In most of this lot the 

 umbo of the inframedian lateral plate is submedian on the rostral 

 border, but other individuals have it lower, and in the most extreme it 

 is at the lower third of the rostral border of the plate, as in 8. stroemii 

 svbstroeinii. 



Specimens of this form, with others between it and typical 8. stroemii 

 were taken also at the following Fish Commission stations: 2528, off 

 Marthas Vineyard; 2068; also Cat. No. 21548, U.S.N.M., from Glou- 

 cester fishermen, and therefore from the fishing banks. 



SCALPELLUM STROEMII SUBSTROEMII, new subspecies, 

 Plate 1, tigs. 8, 9, 10. 



Type.—Q2Lt. No. 11756, U.S.N.M. 



Type-locality. — Alhatro><s Station 2693, off Newfoundland, in 78 

 fathoms. 



Other localities. — AlhatroKS Station 2062, off New England, north 

 latitude 42° 17', west longitude 66° 37' 15", in 150 fathoms, No. 11325, 

 U.S.N.M.; also at Station 2067, and at trawl station 10, H. M. S. 

 Triton, Faroe Channel, in 516 fathoms. No. 12203, U.S.N.M., Jeffreys 

 collection. 



The rostrum and rostral latera are shaped about as in 8. stroemii, 

 but the inframedian lateral plate is wider, with the umbo below the 

 lower third of its rostral border. The carina is broader than in 8. 

 stroemii, with a wider intraparietal area. The type, No. 11756, meas- 

 ures, length of capituhtm 10, width 5, diam. 3 mm. 



This form is apparent]}" identical with 8. stroemii of Gruvel." 



"Monographie des Cirrhipedes, p. 41, No. 21, fig. 42. 



