Hab. in aqua submarina Ktorali et salsa salinarum; in aqua duloi
passim et singulatim mihi obvia ; etiam fossilis in Bohemia.
S. subsalsa Sm. (Diat. I. p. 34. F. 259. S. pygmaea Ehrb.
Microg. T. XXXV. A. 8 . E. 4). E minimis, exacte cuneata vel obovata,
utroque polo obtuso - acuminata ; costis validis, deelinatis, 8 in 0 ,0 0 1 " ;
vitta angusta percursa. v.. s. ’ ’
Long. 1/ 133— 1/ 55'" = 0,0006— 0,0016".
Hab. in aqua duloi et submarina Angliae. Specimina misit Gregory.
S. iehthyocephala Rabenh. (Süssw. Diat. p. 30. T. X. suppl. P. 6 .
Pntoh. Inf. p. 796.). Mediocris, ovato-oblonga, utroque polo late rotu
n d ata , eostis validis arcuato-oonvergentibus 3 in 0 ,0 0 1 " , vitta lata
laevissima. v. v.
Long, ad 1/20'" = 0 ,0 0 4 5 " ; lat. max. 1/57" ' = 0,0015".
Hab. in fossis argillaceis prope Anoonam Italiae (ipse 1847).
S. Gemma E h rl. (Abh. 1840. p. 76. T. IV. F. 5. Ktz. Bao.
p. 62. T. 7. F. 9. Sm. Diat. I. p. 32. F. 65. Desmaz. ed. nov'
X. 502. Grun. in Wien. Verh. 1862. p. 457. Pritoh. Inf. p. 796.).'
Magna, oblongo-elliptica, utroque polo obtuso-rotundata, costis remotis
paulo^convergentibus 4 in 0 ,0 0 1 " , inter costas striis punctatis 48 in
0 ,0 0 1 " , vitta angustissima; valvis carina evidenter ala tis; a latere
exaote cuneata, utroque polo trunoato-obtusa, vitta cuneata. v. v.
Long. 4/30— Vie'" = 0,0029—0,0056".
^ Hab. ad litora limosa maris baltici, s e p ten tr., in ostiis fluviorum,
in litoro msularum vioinarum, ad oras Galliae et Angliae ; in fundo
maris Adriatici (Fiume, Z ara, Isol. Petagne) et alibi ad ejus litora
frequenter ooourrit et ejicitur.
11 Costae vitlam mediam non attingentes.
S. obtusangula Ralenh. (Süssw. Diat. p. 27. T. I II. P. 27. Pritoh
Inf. p. 975.). E minoribus, oblongo-elliptica, utroque pòlo attenuata'
obtusata, costis manifestis abbreviatis 6 in 4/ioo“ -™' ( = 1/ 220'" = 0 ,0 0 0 3 " )’
latere oblonga, utroque polo late rotundata. v. v.
Long. 1/ 130— 4/ 12 '" = 0,0006—0,0007".
Hab. in nvulis Saxoniae, in algas oonfervaceas singulatim obvia
S. ovum NägeU (in Ktz. Spec. Alg. p. 889.). „Late ovalis, striis
marginalibus 8 in Vioo'", altero latere late linearis recta, margine pliois
marginalibus (costis) 6. Long. 4/go _ 1/ 25'" y. v.
Hab. in Helvetia (Xägeli).
Species suspeota, fortasse Cymatopleurae forma quaedam.
S. ovalis B r é l. (Cons. Ktz. Bac. p. 61. T. 30. F. 64. Eabenh.
Süssw. Diat. p. 30. T. I I I . F. 24. Alg. X. 1004. Sm. Diat. I. p. 33.
T. IX . F. 68. Pritoh. p. 796. Grun. in Wien. Verh. 1862. p. 458.).
Mediocris, oblongo-ouneata, tru n ca ta , in fronte ovato-elliptica vel late
ovata, suboordata (Grun. 1. 1. T. X. Fig. 10.), costis gracilibus, approxi-
matis, radiatim dispositis, 8—12 in 0,001" aream magnam ovatam
ciroumdantibus, inter costas seriatim punotata; valvis carina vix a la ta.v. v.
Leng. 4/40— 4/ 26'" = 0,0022—0,0034".
Hab. in fossis atque lacubus, in aquis submarinis et oalidis Germaniae,
Austriae, Helvetiae, Angliae, passim.
S. o v a t a Ktz. (Bao. p. 62. T. 7. F. 1 — 4. Sm. Diat. F. 70.
Eabenh. Alg. 883. et sub Xo. 605. S. suevioa Zeller in Eabenh. Alg.
X. 1045.). Minor quam praeoed., ovata, utroque polo obtuse rotundata,
costis remotis, 11 in 0 ,001", in te r costas obsolete punotata, valvis
carina evidenter alata, v. v.
Long. 4/ 110— 4/44'" == 0,0008—0,0020".
h. intermedia Ralenh. (Alg. X. 642.) Sur. ovatae proxima quoad
formam, diff. magnitudine et costis minus remotis
C. s a l in a (S. salina Sm. Diat. F. 71.), forma elongata, ovato-ellip-
tioa, costis 14 in 0,001".
Hab. in aqua duloi praesertim oalida et in submarina, per Europam
passim.
S. minuta B ré l. (in Ktz. Spec. Alg. 38. excl. syn. Eabenh. Süssw.
Diat. p. 30. Alg. X. 1490 et 964 (S. p in n ata !), Desmaz. ed. I.
X. 1456 ed. I I . X. 1056. Sm. Diat. I. p. 34. F. 73. Pritch. Inf.
p. 797.). E minimis, ovato-elliptica, costis radiantibus, 14 in 0,001",
area anguste lanceolata, valvis carina vix a lata, latere exaote cuneata,
utroque polo truncata. v. v.
Long. 4/ 175— 1/98'" = 0,0005—0,0009.
Hab. in rivulis, torrentibus per Europam fere ubique, e planitie
usque in regionem montanam et subalpinam.
S. p in n a t a Sm. (Diat. 1. 1. F. 72. Eabenh. Alg. X. 1103 et sub
Xo. 345. S. minuta ß pinnata Grun. 1. 1. p. 460.). Elongate-ovata,
costis parallelis, validioribus (ut in S. minuta), area ad vittam linearem
reduota. v. v.
Long, ad
Hab. in rivulis cum praecedente.
S. Crumena Bréb. (in Ktz. Spec. Alg. p. 33. S. Brightwellii Sm.
Diat. I. p. 33. F. 68. Eabenh. Alg. X. 1381. (specim. authen.). Latissime
o v a ta , suborbicularis, uno polo a cuto, altero late rotundato,
radiatim costata, costis leniter arouatis 12 — 15 in 0,001", area ovata.