EAST AMERICAN SCAPHOPOD MOLLUSKS. 



99 



tionally extended range. In many old or worn specimens the apical 

 features become less prominent, and consequently the slits are less 

 deep Even in such event the shells, by reason of other characters 

 need never be confused with other species of normally lesser apical 

 lobes and which occupy in part the same faunal areas. 



A small race of 5.5 to 6 mm. in length, but differing in no othei 

 respect, is found in Barbados (12 fathoms). It scarcely deserves a 



subspecific name. 



I have divided the species into two subspecies. 



CADULUS (POLYSCHIDES) QUADRmENTATUS QUADRIDENTATUS Da.l. 



Plate 17, figs. 2, 3. 



This the typical subspecies, includes all forms muler the descrip- 

 tion o Cad2s gnadMentains Ball, excluding only a waller race 

 that exhibits a slight lateral compression n, the anterior portion of 



the shell. 



The type is of C. quadridentatus. 



The following are the lots in the museum collection: 



190649 



181243 

 92832 



329740 

 93138 



330174 



Num- 



ber of Cat. No, 



speci- U.S.N.M. 



mens. 



1 



8 



3 

 13 

 37 

 75+ 



9 

 10 



Locality. 



Remarks. 



17.5 fms. 



22 fms., 73.5° 



93139 



93140 



92820 



92826 



93145 



93143 



92827 



82994 

 314.591 

 314592 

 314593 

 314594 

 314595 

 314596 

 314597 

 314598 

 314599 

 314600 

 314601 

 314602 

 314603 

 314604 



15fms.,crs. gy. s. 



52 fms., ers. wh. s., brk. sh., 67' 



To 

 22 fms., 78.8° wh. s., brk. sh. 

 lSfms.,73.5°fiie. gy.s. 



22 fms. 



31 fms 



Off Cape Hatteras, North Carolina, U. S. B. F. 



Station 2272. , ,, ^ i- „ tt a r f 



Off Cape Hatteras, North Carolma, U. S. B. !■ . 



Station 2275. tt a t? t? 



Off Cape Hatteras, North Carolma U S B F . 

 Off Capo ITatteras, North Carolma, U. S. B. 1- . 



Station 1597. , „ ,. tt o tj ir 



Off Cape Hatteras, North Carolma, U. S. B. 1 . 



Station 2598. , ,^ ^ i- „ tt q Tt F 



Off Cape Hatteras, North Carolma, U. S. B. l< . 



Station 2597. i- „ tt a n v 



Off Cape Lookout, North Carolma, U. S. B. !• . 



Stati"n2612. , ,^ ^ ,• „ tt « Tt T? 



Off Cape Lookout, North Carolma, U. S. B. i . 



Off cS° Sout, North Carolina, U. S. B. F. 



Off cS Lookout, North Carolina, U. S. B. F. 



Station 2607. , ^, ,. „ tt a -r f 



Off Cape Lookout, North Carolma, U. S. B. 1 . 



Station 2608. , ^ , . tt a tj v 



Off Cape Lookout, North Carolma, U. &. B. J . 



Station 2611. , ^, ,. tt a r f <5t-i 



Off Cape Fear, North Carolma, U. S. B. t . bta 



Off Cape Fear, North Carolina, V. S. B. F. Sta 



Off S'l-ear. North Carolina, U. S. B. F. Sta- | 17 fms., s. 



Off C° fe^Fcar, North Carolina, U. S. B. F. Sta- 15 fms., 74° gy. 



FrInS Shoals, North Carolina ^ ^s. (Rush) 



Miami, Florida , Eolis Stat on 83^ 3 Jms^ 



MiaSi Florida, EoUs Station ,57 - - 22 fms 



Miami, Florida, Eolis Station 62 



MiaSi Flo.ida, Eolis Station 93^ 



Miami, Florida, Eolis Station / 



Miami, Florida, EoUs Station 111 



Miami, Florida, EoUs Station 49 



Miami, Floiida, Eolis Station <0 



Miami, Florida, Eolis Station 51 



Miami, Florida, £o/iS Station 103 



Miami, Flovi.la, £ofe Station 118 



Miami Florida, Eolis Station 113 ^_^ ^^^^ 



Fowev, Florida, Eolis Station 8 ^ 



Fowey , Florida, Eolis Station on ' •»■» 



15 fms. gy. s. blk. sp. (t>T)e of in- 

 cisvsBush). 



16 fathoms, gy. s. and brk. sh. 



wh. s., brk. sh. 



8.2° ers. gy. s. 



brk. sh. 



74° blk 

 14fms.,crs.yl.s.,brk.sh 

 15 fms.,crs.yl. s. 



, brk. CO. 



18-25 fms. 

 3,5-38 fms. 

 15 fms. 

 30fms.,s.,brk. CO. 



10 fms. 



24 fms. 

 20 fms. 

 30 fms. 

 18-20 fms. 



25 fms. 



