344 PLECOTREMA 8$. 1. 2. 
(2/; subaequans), infra angulum obconice attenuatus, pone aper- 
turam subcompresse et valide cristatus, basi circa umbilicum 
subinfundibuliformem, subprofundum carinatus; apertura sub- 
obliqua; plicae parietales 2, superior nodiformis, suboblique 
descendens, altera transversa, aliquando supra basim subdu- 
plicata, profunde intrans, extus in carinam periomphalem 
abiens; plica columellaris minor, transversa; peristoma conti- 
nuum, undique solutum, plus minusve porrectum, breviter ex- 
pansum; margine dextro bidentato, dente supremo majore. — 
Long. 5, lat. 22/4 mill.* (S. — Coll. Nr. 3.) 
B. Ventrosior, ult. anfr. !/ testae aequans. Long. 4!/;, 
lat. 3 mill. 
Plecotrema Souverbiei Montrouz. in sched.; Souverbie in Journ. Conch. X. 
1862. p. 246. t. 9. f. 12. 
— — Gassies Fauu. Nouv. Caléd. p. 67. t. 6. f. 23. 
Habitat ,Daie boisée*, var. 8 ins. Art Novae Caledoniae. 
* 
6. decussata H. & A. Adams. (Coll. 4.) I. 102. II. 77. — Ins. PLilippin. 
7. bicolor Pfr. I. 103. II. 78. (In Proc. Zool. Soc. 1855 casu omissa.) 
— Port. Jackson. 
e 
8. octanfracta (Pedipes) Jonas. (Coll. 5.) I. 103. II. 78 (clausa ). 
— Jickeli in Nachr. malak. Ges. Oct. 1872. p. 65. —  Pedipes 
octanfracta Jonas in Zeitschr. f. Malak. 1845. p. 169 *). —  Pleco- 
trema. clausa H. & A. Adams, Pease in Proc. Zool. Soc. 1871. p. 
469 **). — JSehmeltz in Mus. God. cat. V. p. 87. — Ins. Sandwich. 
9. P. mordax Dohrn. 
.I. vix rimata, ovato-conica, solidula, suleis spiralibus 
regulariter exarata, vix nitida, pallide fulva, interdum rufo- 
*) ,P. testa ovato-conica, anguste perforata, solida, transversim lirata: 
liris latiusculis, sulcis interjectis angustis, fusca; anfractibus octo planiusculis, 
ultimo convexo, subventricoso, spira majori; apertura elongato-ovata, dentibus 
quinque coaretata: dentibus tribus majoribus compressis, aequalibus, intervallis 
paribus in columella, duobus minoribus nodiformibus in margine dextro. — 
Long. 2?/5 lat. 1?/ lin.* (J.) 
**) .'T. imperforata, ovato-conoidea, crassa, vix nitidula, spiraliter 
costulata aut lirata, costis rotundatis, interstitiis setulis munitis et longitudi- 
naliter tenuiter striatis, pallide fulva vel rufescenti-fusca, rare indistincte 
fasciata; spira conica, apice acuto, vix mucronato; anfr. 7, planiusculi, 
ultimus convexus, !/, longitudinis testae fere aequans, basi vix attenuatus; 
apertura vix obliqua, oblonga, angusta, ringens, basi anguste rotundata, 
postice acute angulata; plicae parietales 2, superior compressa, perobliqua, 
cum labro callo juneta, altera bifida; plica columellaris compressa, transversa; 
labrum dextrum extus incrassatum, intus ad marginem valde callosum, fortiter 
bidentatum; apertura pallida, albida. — Dimens. 5243 vel 4 2«2 mill. — 
Hawaii. * 
