164 
HULL SCIENTIFIC AND FIELD NATURALISTS’ CLUB. 
Cymbella cuspidata, Kutz., Slt. Cot. (N.), RFy. Nbd. ss. 
” 
9 
(B.), cask: (Ss) spl. 12; 6 27: 
cuspidata, var. naviculiformis., KHI1. Pfn. bog (P.), 
BlenS.) ita (G:)$ ‘pl. 13,929". 
amphicephala, Naeg., Cot. Brh. CIM. (N.), Atk. 
MWn. Btm. (P.); pl. 12, f. 18. 
obtusa, Greg., Brh. ss. (N.); pl. 12, f. 19. 
affinis, Kutz., Har. (N.), Brh. (S.) ; pl. 12, f. 20. 
microcephala, Grun., Fla. cliffs (P.); pl. 12, f. 21*. 
aequalis, WSm. (Navicula angustata, WSm., N. 
inaequilatera, Lag.), Thorne moor, ScC. Cot. 
(N.), Ask. (S.), Brd. (P.), Meaux, Wne. Bvy. 
(W)is: plies f 22. 
gastroides, Kutz., Cave, EvP. Nbd. ss. (P.), Hfd. 
(So) ops 12, f. 25%. 
lanceolata, Ehr.+ (Cocconema lanceolatum, Ehr.), 
RHI. Nbd. Risby, Dfd. (N.), Arram, KH. 
Gby. park (P.), RHr. (Mi.); pl. 12, f. 24. 
af var. cornuta, HWW. (N.); pl. 12, f. 25. 
cymbiformis, Ehr. (Cocconema cymbiforme, Ehr.), 
common in fresh water; pl. 12, f. 26. 
AO var. parva. (Cocconemaparvum, WSm.), 
Anlaby Rd. (Mu.); pl. 12, f. 27. 
Cistula, Hempr. (Cocconema Cistula, Ehr.), com- 
mon in fresh water; pl. 12, f. 28. 
5 Var. mtaculata.,| Dfd.. Fla. Hes, \(P:)s 
plolasd 29". 
Helvetica, Kutz., Slt. MWn. c. Spring ditch (N.), 
KB Spd.) (22): pl. 12; £30: 
Encyonema prostratum, Ralfs., RHI. Wne. (N.), HWW. 
(Mi.), Nid. (Mu.), Arram (P.), RAb. (C.) ; 
pl 12, £31. ; 
turgidum (Greg.), Grun., Spring ditch (Mi.), 
Skidby dr. (P.); pl. 13, £. 20%. 
caespitosum, Kutz., common; pl. 12, f. 32. 
Ae var. Auerswaldii, RHr. (Mi.), 
Gby. park (P.); pl. 13, f. 21*. 
ventricosum, Kutz. (Cymbella ventricosa, Kutz.), 
Skl. Bnm. Ing. (N.), Cot. Btm. Wtn. ss. 
(P.), Stn. Bvy. (W.); pl. 12, f. 33. 
+ Hunter records Cocconema Boeckii (WSm. sic.) Grun. for Goole. 
This is a variety of Cymbella lanceolata, which we illustrate (after Grunow 
in A.S. Atl., Pl. ro, fig. 11), in our Pl. 26, fig. 17. 
+ The form recorded by Norman, as Cymbella maculata, on exami- 
nation of his slides proves to be Encyonema caespitosum, no doubt found 
without tubes. 
