INDEX 



565 



Synthecium flabellum, 221. 



tubithecum, 199, 221. 

 Syringidium, 160. 



americanum, 160. 



daemon, 160. 



diadema, 56. 

 tabellaria, Biddulphia, 46. 



Navicula, 94. 

 tabellarium, Biddulphia (Triceratium), 



39. 

 taeniatus, Campylodiscus, 55. 

 Taeniogyrus cidaridis, 302. 

 tahitiana, Surirella, 159. 

 temperei, Amphiprora, 17. 



Biddulphia, 46. 

 tenarius, Actinoptychus, 15. 

 tenera, Cochlostyla, 422, 423, 426, 427. 



Cochlostvla (Cochlodryas), 423, 

 429. 



Helicostyla, 422, 423. 



Helix, 422, 423, 426, 427. 



Helix (Cochlogena), 422, 427. 

 tenuicornis, Rutilaria, 144. 

 tenuirostris, Halicornaria, 199, 237, 242. 

 tenuis, Sertularia, 213. 

 tenuispina, Goniocidaris (Cyrtocidaris), 

 264, 266 (fig.), 268 (fig.), 270, 285, 

 307, 308, 310, 311. 

 tenuistauros, Achnanthes, 11, 176. 

 Terpsinoe, 160. 



intermedia, 160. 



musica, 160. 

 terroris, Amphora, 21. 

 tesselatum, Plagiogramma, 77, 131. 

 Tessella, 9. 



tessellata, Roperia, 143, 181. 

 tetragibba, Amphora, 28. 

 Thalassiothrix, 160. 



frauenfeldii, 160. 

 Thaumatonema, 161. 

 Thecoearpus, 236, 237. 



balei, 199, 236, 242. 

 thornelyi, Obelia, 198, 202. 

 Thuiaria, 196. 



elegans, 220. 



quadridens, 199, 214. 



quadrilateralis, 214. 

 thumi, Scoliopleura, 144. 

 thumii, Dictyoneis, 108. 



Navicula (Dictyoneis), 123. 

 thuringicum, Gyrosigma, 9. 

 Thyroscyphinae, 196. 

 Thyroscyphus, 203. 



marginatus, 198, 203. 

 tiara, Stylocidaris, 292. 

 titiana, Biddulphia, 170. 

 toppingi, Cochlostyla rufogaster, 336. 

 Toxonidia, 131. 142. 

 transfuga, Navicula, 116. 

 translucens, Navicula, 123, 180. 

 transversa, Cocconeis, 64. 

 transversale, Pleurosigma, 135. 

 trauensteinii, Surirella, 154. 

 Treadwell, Aaron L., on four new species 

 of polychaetous annelids, 313. 



on polychaetous annelids, including 

 one new genus and three new 

 species, 183. 



Tretocidaris reini, 292. 

 Tribrach ia, 160. 



pellucida, 161, 182. 

 Triceratium, 42, 161, 162, 164, 168, 172, 

 173. 



annulatum, 14. 



areolatum, 40. 



armatum, 46. 



bicorne, 38. 



castelliferum, 48. 



cellulosum, 42. 



circulare, 40. 



concavum, 35. 



cornutum, 44. 



cornutum pulchella, 44. 



cyclamen, 34. 



dulce, 173. 



eulensteinii, 166, 167. 



eulensteinii inornata, 166, 167. 



expressum, 42. 



fimbriatum, 47. 



forresterii, 37. 



galapagense, 166-168. 



globosum, 40. 



grave, 46. 



heteroporum, 167. 



(Biddulphia) heteroporum, 166,, 

 168. 



japonicum, 35. 



jensenianum, 40. 



lineolatum, 40. 



madagascarense, 42. 



marylandicum, 14. 



multiplex, 166, 167. 



neogradense, 14. 



partitum, 42. 



pauperculum, 173. 



petitianum, 43. 



portuosum, 166. 



pulchellum, 44. 



radio-punctatum, 42. 



robertsianum inermis, 47. 



scitulum, 39, 46. 



shadboltianum, 40. 



spinosum, 46. 



trigonium, 14. 



trisulcum, 47. 



turriferum, 47, 48. 



venulosum, 39, 46. 



venulosum diplosticta, 46. 

 tridens, Surirel'a, 153. 

 Tridentata, 196, 197, 198. 

 tridentata, Cerion, 455. 

 trigonium, Triceratium, 14. 

 Trigonium, 35, 81, 161, 162, 164, 168, 

 172. 



antarcticum, 164. 



arcticum, 34, 161, 164,'166, 169, 171. 



arctium, 161. 



balaena, 34, 161, 170. 



bicoronatum, 149, 161, 165, 169, 

 182. 



caelatum, 162. 



cinnamomeum, 8, 162. 



contumax, 162, 182. 



cyclamen, 161. 



diaphanum, 163, 169, 182. 



dissimile, 165, 170. 



