Bacillariese, SurireUace<T, Suriraya. 585 



gine per duas prolongatioiies conjuiictis; area raediana subrectan- 

 gulari, striis validiusculis inrequidistantibus ex arata. 



Ilab. in mari pr. ((Colornbo)) insulas Ceylonse (Craven). 



72. Suriraya opulenta Grun. in Wien. Verhandl. 1862, p. 461, t. 11, 2287 

 f. 10, Rabenh. Fl. Eur. Algar. I, pag. 58. — E raaximis, valvis 

 Jate ovatis, 160-180« 120-140, costis 48, radiant ibus, IV4 in 10 a., 

 raarginein versus dilatatis, in parte latiore pun ctato-striatis, area 

 media maxima late lanceolato-ovata, serie striarum brevium circum- 

 cincta, lineis subtilissimis irregulariter reticulatim conjunctis ornata. 



Ilab. in fundo maris adriatici, rarissiine (LoRENz). 



73. Suriraya muiticostata Leud.-Fortm. Diat. CeyL p. 43, t. 3, f. 40 2288 

 nec Castracane. — Valvis oblongis, ellipticis, pandurajformibus, 

 132 i; 56, medio leniter constrictis et hic 44 u.. latis, apicibus late 

 rotundatis; costis areain limitantibus numerosis, versus raarginem 

 anguste arcuato-dil^tatis, area raediana paullo sinuosa, transverse 

 striis inaequidistantibus exarata. 



Hab. in mari pr. «Colombo» insulae Ceylonae (Craven). 



74. Suriraya eximia Grev. in Micr. Journ. VII, t. 3, L 6, Grun. in 2289 

 Wien. VerhandL 1862, p. 453. — Mediocris, oblonga, medio in- 

 conspicue angustata ; costis introrsura haud validius irapressis, area 

 raediana lineari-lanceolata, delicate transversim striata, pseudorha- 



phe tenui, raarginibus valva3 subtiliter transversira striatis. 

 llab. in aquis marinis (locus mihi desideratur). 



75. Suriraya interrupta Leud.-Fortm. Diat. Ceyl. p. 44, t. 9, f. 84. 2290 

 — Valvis elliptico-oblongis, panduraeformibus, medio constrictis, 

 108-45,5, medio tantura 37 u.. latis, apicibus late rotundatis; area 

 mediana ;i&gre definita, costis interioribus extrorsum arcuatis raar- 

 ginem attingentibus striatisque limitata, apicib us in 2 fasciculos 

 striatos divisa. 



Hab. in mari pr. (c Colombo » insulae Ceylonse (Craven). 



76. Suriraya colombonensis Leud.-Fortm. Diat. Ceyl. pag. 44, t. 9, 2201 

 fig. 85. — Valvis oblongis, 152-158 =* 76-77, medio constrictis et 



hic 58,5 a. latis, apicibus rotundatis, area mediana fascia striata 

 ambitu marginibus valva? subparallela cincta striisque validis, sae- 

 pe iuterruptis et irregulariter dispositis percursa; costis interiori- 

 bus distinctis, dein arcuatira marginem per strias 3 validas at- 

 tingentibus. 



Hab. in mari pr. «Colombo» insula^ Ceylonse (Craven). 



77. Suriraya pulchra Lewis New aud rare Sp. of Diat. of U. S. Sea 2292 

 Board p. 158, t. 1, f. 1. — Frustulis e facie conneclivali visis 



