584 Bacillariese, Surirellaceie, Suriraya. 



66. Suriraya Kittoniana Leud-Fortra. Diat. Ceyl. p. 43, t. 4, f. 43-45, 2281 

 A. Schm. Atlas tab. 50, f. 8 (absque noraine). — Valvis oblongis, 

 60-100^:22-24, raedio constrictis et hic 18-36 u.. latis, alis latis in- 

 structis, costis interioribus conspicue impressis, subsymmetricis, ante 

 marginem arcuatim dilatatis; area mediana fusiforrai, latiuscula, 

 levissiraa. 



Hab. in raari pr. (cColorabo)) insulae Ceylonae (Craven). 



67. Suriraya? orbicularis Cleve Diat. Vega p. 513, t. 38, f. 79. — 2282 

 Valvis orbicularibus, 75 u. diam. raetientibus, canaliculis reraotis 

 I-IV2 in 10 u., paullo ultra semiradium longis, areara centralem 

 depressam sublevem cingentibus; margine striato, striis 18 in 10 ;-'.. 



Hab. inter «Aden» et « Bab-el-Mandeb » (Cleve). — Su7-i- 

 rayoi fastuosce Ehr. proxima. Anne Campylodiscus? 



68. Suriraya degenerans Cleve On some new or little known Dia- 2233 

 toms p. 17, t. 4, f. 51. — Valvis oblongis, 70-90 s 37-46, apicibus 

 latissimis, medio leniter constrictis, marginibus striatis, costis ob- 

 soletis, tantum e parte dilatata constantibus, area mediana striolis 

 granulisque sparsis ornata. 



Hab. ad insulas Galhipagenses (Exped. Eugenie). — Suri- 

 rayce fastuosa3 var. latce et laoccB affinis. 

 60. Suriraya Hyadesi Petit Mission scient. Cap Horn V, pag. 128, 2284 

 t. 10, f. 8. — Valvis ellipticis, 81-82^:67-68, valde tumidis, pseu- 

 dorhaphe brevi apices non attingente areaque laQceoIato-acumina- 

 ta, costis hyalinis, 3 in 10 a. et irregulariter dispositis percursa 

 cincta; margine valvse ut ia Su7nraya fastuosa ; striis raargina- 

 libus confertissimis, 18-19 in 10 u. 



Hab. in mari ad Caput «Horn» America? australis (P. Petit). 

 — Area centralis 23,5 a. lata, fascia hyalina (1,8 u.. lata) cincta; 

 margo 21,5-22 u.. latus. 



70. Suriraya formosa Cleve On some new or little known Diatoms 2280 

 p. 17, t. 4, f. 49. — Valvis panduraeformibus, 220^110, ad con- 

 strictionem 70 y.. latis, apicibus latis, rotundatis, margine striato, 

 costis abbreviatis, parte dilatata pro ratione raagna, raedio valvfe 

 areara angustara linearem per strias breves deflnitara praebente. 



Hab. ad insulas Gallapageuses, rarissime (Exped. Eugenie). — 

 E grege Surirayce fastuosce sed diversa. 



71. Suriraya fortunata Leud-Fortra. Diat. Ceyl. p. 42, t. 3, f. 39. — 22% 

 Valvis oblougis, ellipticis, pandurseformibus, 128 s; 60, ad constri- 

 ctionem 52 u. latis, apicibus late rotundatis ; costis areara limitan- 

 tibus conspicuis, versus margines arcuatim abeuntibus et cum mar- 



