414 PYRAMIDELLIDZ. 
The list will now stand thus :— 
True species. 
Chemnitzia decussata. 
Chemnitzia pallida. © Chemnitzia Scille. 
— conoidea. excayata. rufa, 
— acuta. — Warrenii. scalaris. 
—— insculpta. — clavula. elegantissima. 
—— interstincta. —— nivosa. — nitidissima. 
— Sandvicensis. — unidentata. acicula. 
—— fulvocincta. —— plicata. Barleei. 
—— indistincta. — obliqua. — Gulsone. 
fenestrata. —— spiralis. —— pusilla. 
Of these, the animals of twenty-one have been examined, 
and seven still escape observation. 
Spurious species. 
Chem. formosa, synonym of Chemnitzia rufa. 
C. clathrata, — C. indistincta. 
C. conspicua ? _ C. acuta. 
C. striolata ? — C. acuta. 
C. dubia, — C, pallida. 
C. alba, — C. pallida. 
C. nitida, _ C. pallida, 
C. albella, — C. pallida. 
C. rissoides, —_ C. pallida. 
C. eulimoides, _ C. pallida. 
C. cylindrica, — C. nivosa, dwarf and littoral. 
C. truncatula, —_ C. nivosa, elongated var. of coralline zone. 
C. decorata, — C. Warrenii. 
C. diaphana, — C. obliqua, juv. 
C. dolioliformis, - C. Sandyicensis. 
C. notata, oo C. pallida. 
C. turrita, — C. acuta. 
C. affinis, — C. acicula. 
C. rufescens, “= C. scalaris. 
C. glabrata, — C. pallida. 
CHEMNITZIA, D’Orbigny. 
Opostomtia, nonnull. 
Animal spirale, rostro elongato preeditum, sub basi tentaculorum 
proboscidem retractilem emittens. 
Tentacula brevia subtriangu- 
