I \. I 



L. \I;IN \r\. .1. llr. \ B. I'l. .M 



Thin. opaque, L r li>.-y. liianirnlate. la.~e \\ith :i t 

 face appeariii miilar under the micp,-c.,j. 



Lowish brown to wards the apex ; whorls 6 8, flattened bel 



suture ami upper keel, as well as between tin- two keel- of the I. 

 whorl. Length. '2'~> mill. 



Ocean Porcnpin. 



L. dKOULATA, N'rrrill. IM. 51, fig, '.'.'I. 



Rather solid, depressed, spirally >ti-i;iic.l, KiniiLriilatr.!, \\hit<- \vith 



a In-own nucleus; whorls ;j, r;ipilly inci-fa-inir, flattened ahovc and 

 tin 4 carina-; ninliilicii- ralln-r narrow and drcp. 

 i, -'-, diani. .'I'll mill. 



Off New Kinjlnnil Coast; OOli-l \(\~ frn>. 



the preceding species, hut is more depresse<l. Verrill 

 observes that a young specimen, apparently of this specie-, has a 

 distinct epidermis, hearing small hair-like processes, mo<t prominent 

 on the carina-. 



L. CINCTA, Jeffreys. PI. 51, figs. 88, 89. 



Thin, opaque, glossy, with a few spiral stria-, of which one below 

 the suture is more prominent, and mhiutely tubercolated ^i\ the 

 upper whorls, white; whorls 5, convex, with deep suture; outer lip 

 thin, slightly expanding, folded over the pillar, inner lip attached 

 to the pillar; umbilicus shallow, enclosed by a semicircular rid^c 

 and ending in a small, deep perforation. Length, iK) mill. 



Atlantic Ocean (Porcupine Kxped.> 



L. NATICIFORMIS, Jeffreys. PI. ~> 1 , ii->. !M ). ! 1 . 



Obtusely triangular, with excentric spire, thin, semitran-parent 

 and glossy, with a few rather stmn;: ha>al stri:e, he.-iile- the umhili- 

 cal ridge, white; whorls :>, convex, rapidly increasing; uml>iliMi> 

 rather large, with a small, deep perforation. 



Length, Mo, diani. 2'7") mill. 



' Porcupine Kxpcd. 



L. .I.IVACI:A, Verrill. PL 51, ii- 92, 



Thin, trail-lucent, with 4 convex whorls, the >i 

 pressed, smooth, glossy, covered by a -rcciiNi yellow, thin, closely 



adherent epidermis ; impertorate. Length, 4 mill. 



Of Uirthn* Vineyard, Mass. 



