144 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Mangilia interfossa Carpenter, 1865 
Annals and Magazine of Natural History, series 3, 15:29. Tryon, Manual of 
Conchology, 6; PL 22, fig. 57. 
M. testa parva, valde attenuata, rufo-fusca, marginibus spirae parum 
excurvatis; anfr. nucl. ii., ut in “Chrysodomo” irregularibus, apice tnamil- 
lato; norm vi., parum excurvatis, baud tabulatis, suturis distinctis; costis 
radiantibus circ. xv., angustis, extantibus; costulis spiralibus circ. xv., 
quarum circ. v. seu vi. in spira monstrantur, angustis, supra costas tran- 
seuntibus, ad intersectiones parum nodulosis; interstitiis altis, quadratis; 
basi effusa; apertura subpyriformi; labro acuto, postice vix emarginato; 
labio tenui. (Carpenter.) 
Shell scarcely, very narrowly shouldered, with about fifteen narrow, 
longitudinal ribs, separated by wider interspaces, and the same number 
of spiral lirae, forming subquadrangular pits between the sculpture; red¬ 
dish brown. Length, 10 mm. (Tryon, Manual of Conchology .) 
Type in British Museum? Type locality, Neah Bay, Washington. 
Range. Vancouver Island, British Columbia, to Catalina Island, 
California. 
Mangilia levidensis Carpenter, 1865 
Plate 2, fig. 21 
Proceedings, Philadelphia Academy of Natural Sciences, 63. Proceedings of the United 
States National Museum, 56; PL 21, fig. 1, 1919. 
M. t. rudi, fusca, elatiore; anfr. nucleosis iii. subelongatis, verice haud 
mamillato; anfr. normalibus vi. subplanatis, suturis distinctis, quarum 
primi costis radiantibus circiter xii. latis, interstitiis parvis, et costulis 
spiralibus crebrioribus, quarum v. magis insculptae supra costas transeunt, 
rude ornantur; anfr. ultimis sculptura subobsoleta; apertura elongata, sub- 
quadrata in canalem brevem arcuatim producta, intus hepatica; labra 
juxta suturam vix sinuato; labio vix conspicuo. Long., .86; long, spir., 
.53; lat., .29 poll. (Carpenter.) 
Stumpy, purplish-brown, with rough sculpture. (Carpenter.) 
Type in United States National Museum. Type locality, Puget Sound. 
Range. Bering Strait to Monterey, California. 
Mangilia lineolata Reeve, 1846 
Conchologia Iconica, 1; PL 37, fig. 337. 
Shell somewhat fusiformly oblong, longitudinally obtusely ribbed; 
whitish, encircled with very fine, brown lines. (Reeve.) Length, 6 mm. 
(Tryon, Manual of Conchology.) (Gray, MSS.) 
[1441 
