PLECOTREMA $. 2. 105 
Ellobium striatum.» Phil.« H. et 4. Adams Gen. rec, Moll. ll. p. 238? 
B. Margine peristomatis dextro dentes in crista verticali callosa ferente: 
Plecotrema labrella H. et 4. A4dams in Proc. Zool. Soc. 1852. p. 122 
(test. speciminibus Musei Cumingiani). Nec Des, 
Lirator multisulcatus Beck Ind. p. 108 *)? 
Habitat in insulis Sandwich.; var. 8 in insula Opara. 
10. P. punctigera H. et A. Adams. 129 
T. subrimata, ovata, solida, punctis impressis, serles spi- 
rales formantibus sculpta, nitidula, fulvo-lutea, zonis rufulis 
cincta; spira convexo-conoidea, obtusiuscula; anfr. 6— 7 pla- 
niusculi, vix discreti, ultimus antice breviter deflexus, spiram 
superans, basi vix compressiusculus; apertura subverticalis, 
oblonga; plicae parietales 2, superior nodiformis, altera bifida; 
plica columellaris compressa, obliqua; perist. rectum, acutum, 
margine dextro intus calloso, remote bidentato, columellari 
eubdilatato, adnato. — Long. 6!/,, diam. 4 mill. Ap. vix 4 
mill. longa. (Mus. Cuming. et Coll. Nr. 65.) 
Plecotrema puncligera H. et .4. .4dams in Proc. Zool. Soc. 1853. 
p. 120. **) Gen rec Moll. Il. p. 241. | 
-L — Pfr Syn. Auric. n. 104. 
A. Major, punctis magis excavatis; long. 7!/,, diam. 5 mill. Ap. 5 mill 
longa. (Mus. Benson.) 
Habitat in insula Borneo (Taylor); var. 8 Singapore (Bacon). 
11. P. monilifera H. et A. Adams. 130 
T. subrimata, ovato-conica, solida, liris spiralibus aequa- 
liter subconfertis, subgranulosis cincta, vix nitidula, sordide 
fulvida; spira conica, acutiuscula; anfr. 7 plani, ultimus antice 
breviter deflexus, spiram superans, basi attenuatus, antice con- 
tractus; apertura vix obliqua, angustissima; plicae parietales 2 
compressae, subparallelae, inferior bipartita; plica columellaris 
mediocris, subascendens; perist. simplex, marginibus callo tenui 
*) Haec species neque genericis ncque specificis characteribus designata 
est, quare solum ex identitate localitatis (insulae Oparae) suspicandum est, 
eandem esse testam, verosimiliter a Cl. Cuming antea auctori communica- 
tam. Cl. Gray Liratorem (subg Melampodis Beck), ad genus Cassidulam 
refert (Proc. Zool..Soc. 1847. p. 179). 
**) P, testa ovata, vix perforata; spira conica, obtusiuscula; fulva, 
fusco zonata, transversim punctata, punctis in lineis aequidistantibus, trans- 
versis dispositis; apertura angusta, coarctata; columella triplicata, plica po- 
stica tuberculiformi, mediana bipartita; labro intus tuberculato, tuberculo 
mediano valido. (H, et A. Adams l. c) 
