422 A. E. Verrill — Mollusca of the New England Coast. 



The nucleus appears to be a little larger and more prominent than in 

 the other form. Some of the specimens of this variety are larger 

 than the typical ones. One of the largest measures 11™™; breadth 

 without spines, 5™'" ; length of aperture, 7™'" ; of canal, 4™™. 



This variety might readily have been taken for a distinct species 

 if intermediate forms had not occurred. Both varieties have been 

 dredged in many localities, in considerable numbers, and many inter- 

 mediate forms have been met with. The less spinose forms 

 generally come from the deeper waters, but in some cases both forms 

 occur together. 



This species ranges in depth from 843 to 2,033 fathoms. It was 

 taken at ten stations in 1883, and at five stations in 1884. The typi- 

 cal form was most abundant at station 2115, in 843 fathoms, where 

 over forty specimens occurred (No. 35,583), and at station 20*76, in 

 906 fathoms, over twenty specimens (No. 38,041). Variety limicola 

 occurred most abunbantly at station 2221, in 1,525 fathoms, where 

 nearly one hundred specimens were taken, alive and dead; and at 

 station 2038, in 2,033 fathoms, twenty specimens (No. 34,847) ; the 

 largest example of this variety occurred at station 2084, in 1,290 

 fathoms (No. 38,039). 



This species resembles T. davatus G. O. Sars, to which I formerly 

 referred it, but both Dr. H. Friele and Mr. Gwyn Jeffreys, to whom 

 I afterwards sent specimens, considered it a distinct species. 



Jumala brychia Verrill and Smith, sp. nov. 



Plate XLIV, figures 10, 10a. 



Shell rather slender, elongated, fusiform, with' a tall tapering spire, 

 consisting of more than seven whorls (apex eroded). The body- 

 whorl is somewhat swollen and much larger than the preceding. 

 The lower whorls are slightly shouldered ; the upper ones distinctly 

 so. Below the shoulder the lower whorls are somewhat flattened, 

 but distinctly convex, while the upper whorls are distinctly angulat- 

 ed at the shoulder and scarcely convex below it. On the body-whorl 

 the sculpture consists of well-marked, distinctly raised, revolving 

 cinguli, separated by intervals about twice as wide, one or two of 

 those at the shoulder being a little more jjrominent than the rest, 

 while above the shoulder they are fewer and less distinct. On the 

 upper whorls the cinguli are more prominent, one at the shoulder 

 forming a distinct carina, above which there are six or eight some- 

 what smaller ones, while one quite prominently developed is situated 



