16K 



NUCUL1D/E. 



pella, Linn., h. 22, f. 65, 66. 



fella, Gib. = fragilis. 

 pella, Sow. = confusa. 

 pella, Brug. = coramutata. 

 pell/icida, Gm. = Nicobarica. 

 pernula, Milll., L.14, f. 56, 57, 58. 

 pisura, Sow., N. 14, f. 133. 

 plicifera, Adams = bicuspidata. 

 Pol ii, PhO. = decussata. 

 polita, Sow., L. 36, f. 68. 



PORTLANDIA, pp. 106, 144. 



Portlandica, Hitch. = glacialis. 



pvnxima, Say, N. 8, f. 118, 119. 



Puelcha, D'Orb., N. 22, f. 149. 



puellata, Hinds, L. 39, f. 94. 



pulchra, Hinds, N. 13, f. 146. 



pygmaea, Munst., L. 70, f. 26, 27. 



radiata, Dekav = proxima. 



radiata, Hani., N. 4, f. 123, 124. 



recta, Hinds, L.,* f. 175 (unde- 

 termined) . 



recurva, Conrad = rostrata. 



reticulata, Hinds, L. 46, f. 103. 



retusa, Hinds, L. 71, f. 28, 29. 



Rossianus, Risso = pella, Linn. 



rostrata, Gmel. & Schuin. = per- 

 nula. 



rostrata, Mont., L. 24, f. 84. 



rostrata, Sow. = caudata. 



rugulosa, Sow., p. 149. 



sapotilla, Gould, L. 63, f. 16. 



semiornata, D'Orb. =pisum,t var. 



semisulcata, Adams = lata, 

 serotina, Hinds, L.54, f. 1 9, 20,21. 

 siliqua, Reeve = glacialis. 

 simplex, Adams, N. 27, f. 137. 

 Sowerbiana, D'Orb., L. 2, f. 33. 

 Strangei, Mams, N. 26, f. 125. 

 striata, King, p. 123. 

 striata, Phil. = commutata. 

 striata, Sow. = fragilis. 

 striolata, Adams, N. 3, f. 129. 

 sulcata, Phil. = decussata. 

 sidcata, Adams, N. 12, f. 127. 

 sittcatus, Leach = eaudata. 

 sidcifera, Reeve, L. 73, f. 165, 166. 

 sulculatus, Risso (indeterminable), 

 sulculata, Couth., p. 129, f. 177. 

 Tavlori, Hani., L. 7, f. 35. 

 Tellinoides, Sow., L. 4, f. 36. 

 tenella, Hinds, L. 56, f. 15. 

 tenuis, Mont., N. 33, f. 140, 141. 

 tenuis, Moller = inflata. 

 tenuisuleata, Couth., L. 13, f. 87. 

 Thraciseformis, Storer, L. 66, f. 4, 



13. 

 truncata, Brown = glacialis. 

 tumida, Hinds = convexa. 

 turgida, Gould, p. 159. 

 ventrieosa, Hinds,!,. 32, f. 88, 89. 

 vitrea, HOrb., L. 48, f. 170. 

 Yoldia, pp. 106, 138. 

 Woodwardi, Hani, L. 62, f. 17, 



22. 



* " T. oblonga, tumida, inclinate sulcata, recte et attenuate rostrata, postice ro- 

 tundata." 



t As the engraving of this shell would hardly warrant this synonym, I subjoin a 

 description of D'Orbigny's types, which now rest in our uational Museum. — 



N. semiornata, D'Orb. Amer. Mend. 024. pi. 84./. 27, 28, 29.— Somewhat ob- 

 liquely ovate, much longer than broad, subveutricosc, with a shining ashy-olive epi- 

 dermis, concentrically traversed, towards the ventral margin, especially in front, by 

 somewhat wavy and rather irregular riblets, and adorned on the dorsal regions with 

 divergent curved close costellar stria; ; otherwise unsculptured, yet with traces of the 

 radiating crenulse uear the shorter end. Anterior side much produced, its tip well 

 rounded and slightly tapering ; its dorsal edge convex. Posterior side extremely 

 short, its lower corner cut otf by the oblique rise of the arched and finely crenulated 

 ventral margin. Posterior edge almost perpendicular, convex. Dorsal areas unde- 

 fined, i. San Bias, N. Patagonia. 



