1865.] MR. G. B. SOWERBY ON SCINTILLE AND A PYTHINA. 517 
C. sagitta, Gask., is also an Amycla. In Mr. Pease’s series of 
specimens, the arrow-pattern gradually passes away. 
Sistrum seminodosum, Pse.,=elatum, Blainv., var. 
Mitra brunnea, Pse.,= Strigatella fuscescens, Pse., var. (teste H. 
Cuming). 
M. tessellata, Pse.,=M. puella, Rve. (teste H. Cuming). 
Triton crenulatus, Pse.,= Epidromus antiquatus, Hds. 
3. Descriptions or Four New ScintTILL& AND OnE New Py- 
THINA FROM THE COLLECTION OF Mr. H. Cumine. By G. 
B. Sowersy, F.L.S. 
(Pl. XXXII.) 
ScinTILLa semictausa. Pl. XXXII. f.1, 2. Testa oblongo- 
subquadrata, subventricosa, paulo obliquata, succinea, ad mar- 
ginem ventralem clausa ; lateribus vix hiantibus; apice acumi- 
nato; latere antico breviore et angustiore. 
Hab. Borneo (Mus. H. Cuming). 
Less obtusely angled on the anterior side than S. en and 
deeper than S. erocea. 
ScinTILuA LacTeA. Pl. XXXII.f.4. Testa oblique ovalis, alba, 
clausa, subventricosa, latere postico subextenso. 
Hab. Borneo (Mus. H. Cuming). 
More oblique and less obtuse at the sides than S. layardi. 
Scintr“ya RosgA. Pl. XXXII. f. 5, 6. Testa ovali-oblonga, 
compressa, rosea, antice subacuta, breviuscula, postice lata 
rotundata ; margine ventrali expanso. 
Hab. Lizard Islands (Mus. H. Cuming). 
More expanded at the ventral margin, and more pointed anteriorly, 
than S. pudica. 
ScrnTILLa oBLONGA. Pl. XXXII. f.3. Testa pallide straminea, 
oblonga, lateribus subquadratis, marginibus dorsalibus et ven- 
tralihus rectis. 
Hab. Borneo (Mus. H. Cuming). 
More quadrately oblong than S. borneensis and similar species. 
PyTHINA STRIATISSIMA. Pl. XXXII. f. 7. Testa pallide stra- 
minea, minutissime divaricatim striata ; complanata, subtrigona, 
marginibus latero-dorsalibus declivis, margine ventrali rectius- 
culo, medio vix sinuato. 
Hab. Borneo (Mus. H. Cuming). 
