MWN DIATOMS OF THE ILBATROS6 VOYAGES. 253 



Coscinodiscus lentiginosus Jan.; Schmidt, Atlas pi. 58. f. 11. I s ^ D Exped. 



pi .. /". / /. pl.5.f. 7. Grun. Denkschr. Akad. Wien 48: -I 1884 R 

 Proc. Roj Soc. Edinb. 16: 191. L889. De Toni, Syll. Alg. 2: 1230. • 

 The extreme delicacy of the markings, Blightly excentric in arrangement, and the 

 obscurity of the minute spine jusl within the margin, which are the distinguishing 

 characters of this Bpecies, makes identification difficult. Castracane'e form bearing 

 ihis name , Beems to lack these marks, and Bhows nothing to warranl its assignment 

 here. 



Found al Btal ion 3513, Bering Sea. 



Coscinodiscus lineatus Ehrenb. Phys. Abh. Akad. Wiss. Berl. 1838: L29. L840; 

 1841: 371. pi. 8. VII f. 7,8 not pi 1. III. J. 20 . L843; Mikrog. pi 18./.33, pi 

 22. f. 6a b, pl.85A. XVI. f.S, pi. S5A. XVII. f. 7. L854. Kutz. Bacill. L31. pi 

 l.f. 10. L844. Pritch. Eist. Enfus. ed. I. 830. L861. O'Meara, Proc. Eto; Irish 

 Acad. II. 2: 264. L875. Van Eeur. Synop. 217. pi 181. f. 8. L881. .Ian. D 

 (la/. Exped. pi ,. i. 8, pi 20. f. /,. Schmidt, Atlas pi ■ [878 



pi 114. f. 18. L888. Cleve A: Moll, types no. 57, III. L48, L50, L62, 207, 276. 

 Ratt. Proc. Roy. Soc. Edinb. 16: 172.1889. De Toni, Syll. Alg. 2: L216. 

 Wolle, Dial. X*. A. pi 87. f. 10. L890. 

 Coscinodiscus ehrenbergii O'Meara, Proc. Etoy. Erish Acad. IJ.2: 264. pi 

 L875. 



Two specimens mounted on "in- Blide, a<-<"in]>anyiii:_ r this report, show how unim- 

 portant ili<' marginal Bpines in this Bpecies are, one ha\ in>_ r very large Bpines and the 

 otlu-r barely a trace of them. The single "pseudo-process" is present bul inconspic- 

 uous in both. 



A figure of Ehrenberg's& frequently included here is clearly thai author's I 

 tricus, and in his index to the plates c he gives this figure as "Coscinodiscus lineatus? 

 an eca nti icusV 



Found ai stations 2680H, 2807, off California and Galapagos Islands. 



Coscinodiscus marginatus Ehrenb. variety (?) Plate XI.IX. figure 2 



Ehrenb. Phys. Abh. Akad. Wiss. Berl. 1841: Hi'. L843; Mikrog. pi 18. f. 44, pi 



88. XII. f. /•;. pi 38B, XXII. f. 8. L854. Cleve ,v Moll, types no. II 1. 164, 215. 



Schmidt, Atlas pi 62. f. t-5, 9, //. 12. 1878. II. I.. Smith, Sp. Diat. Typ. no. 



94, 95. 1874. Ratt. Proc. Roy. Soc. Edinb. 16: 509. 1889. De Toni, Syll. Alg. 



2: 1241. 1894 no1 C. marginatus Ehrenb.; Kutz. Bacill. 131. pi l.f. 7. 1844; not 



C. marginatus Ehrenb.; Jan. Abh. Schles. Ges. Vaterl. Cult. 1862- :;. /,/. 1A. 



f. .'a. L862 . 

 Coscinodiscus Jimbriatus-limbatus Ehrenb.; Mikrog. pi 19. f. .. L854. Schmidt, 



Atlas pi I L881; pi 113. /". 2. 1888. 



' limbatus Ehrenb. * Ber. Akad. Wiss. Berl. 1840: 206. 1841; Mikrog. 



pi 20. f. 29 a. 1854. Schmidt, Atlas pi 65. f. 7. 1881. 



inodiscus radiatus forma heterosticta Grun.; Pant. Beitr. Bacill. EJng. 1: 70. 



i>l. 20. f. 184- 1886. 

 Coscinodiscus radiatus subaequalis forma j>tir,<i Pant. Beitr. Bacill. Ung. 1: pi 22. 



i 20 I—''.. 

 Coscinodiscus robustus Grev. ; Schmidt, Atlas pi 1878. 



Coscinodiscus robustus intermedia Grun. Denkschr. Akad. Wien 48 : 72. l vv 

 Coscinodiscus subconcavus forma major Schmidt, Atlas pi 62, f. 7. l s 7v 



1 . str. Rep. Voy. < hall. Bot. 2: Kid. pl.5.J 1886. 

 bPhyB. Abh. Akad. WisB. Berlin 1841: pi i. 11/ /'. 20. 1843. 

 i <>1>. cit. 138. 



*This name as used by Grun. Denkschr. Akad. Wien 48 2 : 72. 1884 ( briatus 



Schmidt. 



