176 HULL SCIENTIFIC AND FIELD NATURALISTS’ CLUB. 
Gomphonema intricatum, Kutz., Net. Wne. Derwent, Bnm. 
(N.); “KH. Btn: ss: .Htp: (P.):3 pl: 13,:£ 43) 
35 var. vibrio (G. vibrio, Ehr.), RHI. Wne. (N.), 
Ask. (S.); pl. 13, f. 44. 
“3 angustatum, Kutz., Btm. (P.) ; pl. 13, f. 45%. 
Se olivaceum, Kutz., Bnm. Cot. Beck (N.), Htp. 
Fla.” Cliffs .(P.), Ask. (S:), Wre. (W.)3>8E 
3at46. 
< exiguum, Kutz., VD. (N.) ; pl. 13, f 47. 
<s insigne, Greg., Nbd. ss. (N.); pl. 13, f. 48. 
Rhoicosphenia curvata (Kutz.) Grun., Cot. Har. (N.), KHI. 
RFy. (P.), RHr. (Mi.), RAb. (C.) ; pl. 13, f. 49. 
o curvata, var. marina, Fla. rocks, Spn. (P.); 
Dio Os 
TRIBE ACHNANTHEAE. 
Achnanthidium flexellum, Breb. (Cocconeis Thwaitesi, WSm.), 
Cot. (Nbd. ss: (N.),, KBL.,.Hes: (Pajp gees 
Cust: )ioplels, £51. 
Achnanthes longipes, Ag., MCh. VD. and Gby. tp. (N.), 
Sry. (P.), Recs (Mi); pl. 13, £-52: 
‘ brevipes, Ag., VD. tp. Cle. Tty. Sty. (N). On 
posts Hsa. Paull(P.), RHr. (Mi.); pl. 13, f. 53. 
re subsessilis, Ehr., Mft. (N.), RHr. (Mi.), NHd. 
Sy. (P.)5 pl ¥3, £55. 
es parvula, Kutz., Rocks, Why. (N.); pl. 13, f. 54. 
- coarctata, Breb. (Achnanthidium coarctatum), 
RHr. Stina.) 5 (pl 14, £. 2 
i Hungarica, Grun. (Stauroneis dubia, Greg.), Ing. 
Sty. bp. Ditch nr. Haworth Hall (N.), Paull 
(PQ); pl Lead. 2. 
sy microcephalum, Kutz. (Achnanthidium micro- 
cephalum). Wall under leaky tap (N.), 
Hes: Flasv(P:), Wwe. Tic. Scarbto, (Wale 
pl. 14, f. 3. 
Fe ovalis (Greg.), V. H. (Stauroneis ovalis, Greg.), 
Ski (Ni )s7epl 145 fk 
* exilis, Kutz., Nbd. and Cot. ss. Wne. (N.), Elm. 
ss. (Pi), 'Meaux. Bvy.. (W.); ° Hid’ “(se 
plea fo: 
r, minutissima, Kutz., Hsa. mere (P.), Cot. (Mi.) ; 
pists fh 6™ 
te linearis, WSm. (Achnanthidium lineare), Cot. 
Bom: Skk \(N.); Bred, (P.)3 pl. 14; £27. 
