1.1 Ml M V I 

 l|l|l| C »Ml III ! ' '. 



I nu Uuitutn -• llulii \isa (An ti 



Dunwlin 



i m nafilan " 



»cxangulan ,>' minn* Uoi 'i Bi88, Jap. l»>-u,. p, 19 



• Mlnl.r luiitiitn ', magnitud i nia funuu •. apicibua Icviaaiiw rctusia i verlici \i-.i «] 



ii tuutidu . . lut- r. . in ulan - 6 27. 



1 I . «; lat II I'-' '•: l;.l. ftplC. 5 B "■ 



fl • 



I Ii. vitale tu rvferring ilii- rönn to Lunokli I exutit/ulare, the m. .,-. u if is con 

 »idvrabh »malier. In tit*- form from Taupo the bjhjx ia truncafa and broader dian in 

 tliut t: I ' itangi. 



i. Mtmm Nordst. Desm. Brasil. p. 212, tab. .">. fig. 33. 



ni |>uull<> tuinur luuricc ad granuluui reducto. 



II «; lat 10 ". 



I 'iiiutun-i (2 K)). 



11. (. miiiiiiiiiii I' Dcstn. Ital. p. 105, tab. 7. ii-. 37 39. 



fica sinu intimu &a?pu linuari, doreo scmieellulae medio iuterdum 

 |HMilluluin truncato. Pab. 7. fig. 28. 



Long. 25 29 »: lat 18 23 ": crass. II <<: lat isthin, 6 .». 



ia River 112); Omatangi (240, 253, 260, 264); Orakeikorako l".' 1 .' . 

 The figurca "t HeterocarpeUa bioeulata Bbbb. Vig. Fal. tab. 7 are small and tberefore 

 indistinct, l>ut « I« • not appear t" mc quite identical with any of tlx 2 forms of Cosmarium 

 ulatum which are dra\vn in Ralfs Brit. Desm. tab. 1"> (for li.L r . 5 a seems to I»- ver} 

 diffcrent from •*> 6 et/). Recent authors bave described several varietiea which difier 

 - lerably. Moreover many forma have been described, vvbich are ;i kiinl of transition 

 vdatum and C. monilifortnt. Soiue "I thesc are eDumerated bere: 

 I) C. monilifornu f. elliptica Lagbrh. Bidr. Am. Desm. ]>. 240, tab. -7. fig. 13; 

 milif. b. ellipticum Bxrbs. Form. Desm. p. ."><i: 3) C. mon. f. elliptica Nordst. 

 N _ Desm. p. 22; l) C. monil. Jacobsbn Desm. Danem. ]>. 200, tab. 8, fig. :.' 1 

 C. Biss. Desm. VVinderm. p. 194); 5) C. contractum Kirchn. Schles. 



Vig. p. 117: 6) C. tUipwideum Blpv. Finsk. Desm. p. I?., tab. 1. fi^r. 10; 7) C. éUi\ 

 minut Racib. Desm. polon. p. 84, tab. I", fig. 9; 8) C. minutum Drlp.; 9) C. minutumi. 



datum Kalks Brit Desm. tab. 15, li.L r . 5 a; 11) — — 5 c; 



— - 13) — • 5 /. — Of these it doea nol appear that n:o 1 ongbt t.. !><■ 



included under the »nu.- specific type ae n:r _' — n: but which amoogsl the resl of them 



that ma) ultimately provi (■• be sufficiently distinct for specific segregation, I oannot at 



- 



