Index to Genera. 



45 



nobilis, oppelli, orbignyana, princeps, prismatica, remus, ritteri, salviensis, 

 smithii, spatula, tournali, triaculeata, tricarinata, trigonacantha, trilatera, 

 trispinata, tuberosa. 



Rhynchopygus, 287 : galeatus, guadeloupensis, marmini, nasutus. 



Rotula, 238 : augusti. 



Rumphia, 229 : decagona, rostrata. 



Runa, 221 : comptoni, decemfissa. 



Salenia, 148 : acupicta, anthophora, areolata, clathrata, depressa, folium-querci, 

 geometrica, gibba, heliophora, incrustata, minima, peltata, pentagon ifera, 

 perforata, petalifera, personata, prestensis, rugosa, scripta, scutigera, stellifera, 

 stellulata, studeri, triboleti, trigeri, trigonata. 



Salmacis, 108 : bicolor, pepo, vandeneckei. 



Savignya, 82. 



Schizaster, 389 : aequifissus, agassizii, ambulacrum, amplus, bellardi, beloutchistan- 

 ensis, borsoni, canaliferus, cerasus, costifer, cultratus, desorii, djulfensis, 

 d'urbani, eurynotus, foveatus, genei, goldfussii, graecus, grateloupi, inter- 

 medius, lachesis, lacunosus, latus, leymerii, major, newboldi, ovatus, 

 parkinsoni, raulini, rimosus, scillae, stellatus, studeri, subincurvatus, sub- 

 rhomboidalis, verticalis, vicinalis. 



Scutella, 231 : altavillensis, ambigena, ambigua, bifora, bioculata, brongniarti, 

 - * clypeastriformis, crustuloides, decagona, decemfissa, elliptica, faujasii, ger- 

 minans, gibercula, hexapora, incisa, inflata, jonesii, leyelli, macrophora, 

 marginalis, michelini, nummularia, occitana, patagonensis, paulensis, penta- 

 pora, polygona, porpita, producta, propinqua, pyramidalis, quinquefora, rogersi, 

 sexforis, smithiana, stellata, striatula, subrotunda, subtetragona, truncata. 



Scutellina, 223 : elliptica, fibularo'ides, lenticularis, hayesiana, nummularia, 

 obovata, placentula, porpita, rotunda, supera. 



Scutum : angulare-humile, chaumontianum, issyauiense. 



Sismondia, 225 : annonii, costulata, crustulo'ides, incisa, leyelli, marginalis, 



maxima, occitana, planulata, profunda. 

 Spaerechinus, err. pro Sphaerechinus (q.v.). 

 Spatangites, vide Spatangus. 



Spatangus, 419 : acuminatus, acutus, affinis, ambulacrum, amygdala, ananchytis, 

 ananchytoides, anticus, aquitanicus, archiaci, arcuarius, argilaceus, asterias, 

 atropos, bicordatus, bituricencis [sic], brisso'ides, bucardium, bucklandi, bufo, 

 canaliferus, capistratus, carinatus, chitonosus, chloriteus, columbaris, complanatus, 

 cor-anguinum, cor-anguinum norvegicum, cordatus, cordiformis, cor-marinum, 

 corsicus, cor-testudinarium, crassissimus, de koninckii, delphinus, depressus, 

 desmarestii, elatus, elongatus, fossarius, gibbus, globosus, granulosus, 

 grignonensis, helveticus, hemisphaericus, hoffmanni, integer, intermedius, 

 lacunosus, laevis, lateralis, leskei, loncophorus, meridionalis, murchisoni, mur- 

 chisonianus, nicoleti, nodulosus, obesus, obliquatus, oblongus, ocellatus, 

 omalii, ornatus, orthonotus, ovalis, ovatus, pareti, parastatus, parkinsoni, 

 pendulus, petalodes, philippii, pilula, placenta, planus, praelongus, prunella, pul- 

 chellus, punctatus, purpureus, pusillus, pustulatus, radiatus, regina, requieni, 

 retusus, rissoi, rostratus, scillae, siculus, simplex, Stella, striato-radiatus, 

 subalpinus, subglobosus, suborbicularis, truncatus, tuberculatus, veronensis. 



Sphaerechinus, 134: brevispinosus, marii. 



Stenonia, 333 : tuberculata. 



Stigmatopygus, 296 : bervillei, elatus, galeatus. 

 Stirechinus, 131 : scillae. 



Stomechinus, 124: anensis, apertus, aroviente, bigranularis, calloviensis, 

 caumonti, diademoides, excavatus, germinans, gyratus, laevis, lineatus, 

 michelini, microcyphus, monsbiligardensis, multigranularis, nudus, orbigny- 

 anus, perlatus, polyporus, pulcher, pyramidatus, robinaldinus, semiplacenta, 

 serialis, serratus, subcono'fdeus, vacheyi. 



Styrechinus, err. pro Stirechinus (q.v.) 



Temnechinus, 105 : excavatus, globosus, melo-cactus, turbinatus. 

 Temnopleurus, 104 : areolatus, coelatus, costatus, pulchellus, rousseaui, toreu- 



maticus, tuberculosus, valenciennesii, woodi. 

 Tetragramma : brongniarti, depressum, planissimum. 



