368 



PROCEEDINGS OF THE ACADEMY OF 



[July, 



Mus. Cotype No. 1,843 A. N. S. P. (fig. 2). A third specimen, from 

 Burrard Inlet, is in the collection of Rev. George W. Taylor, Biological 

 Station, Wellington, B. C, who collected the specimens. 



Fig. 1. 



Fig. 2. 



This species is known by three specimens of about equal size, which 

 were preserved dry; hence no examination of the internal organs 

 has been attempted. It is related to Scalpellum soror Pils. 1 from deep 

 water (634 fathoms), near the Galapagos Islands, but differs from that 

 species by the more lengthened capitulum, the larger and somewhat 

 differently shaped upper inframedian and carinal latera, the more com- 

 pressed carina and shorter peduncle. The carina of *S. columbianum 

 reaches farther up on the tergum than is usual in Scalpellum. 



S. sanctipetrense Pils. 2 is a broader species than S. columbianum, 

 with a narrower inframedian latus, having the umbo at its upper third. 

 It was taken at San Pedro, California, in 50 to 75 fathoms. S. gravel- 

 ianum Pils., another Calif ornian species, is larger than S. columbianum, 

 "the inframedian latus smaller with apical umbo. 



1 Bulletin 60, U. S. National Museum, p. 42. 

 2 L.c, p. 39. 



