285 
H. coniorta Markt.”) (Pl. V, figs. 16, 17) and Lafoéa venusta 
Allm.”). Such large singly placed gonothecae have also been found 
in two species of the genus Cryptolaria, namely in Or. abyssicola 
Allm.”) and Cr. difusa Allm.%), while two other species, Cr. lon- 
githeca Allm.%) and Cr. conferta Allm,”) have a Coppinia. Nut- 
ting>), however, ascribes to the whole genus Cryptolaria ''a com- 
pact Coppinia” mass much as in Lafoza”, and the reason hereof is 
the following. Pictet and Bedoté) have found in Perisiphonia 
peéctinata a Coppinia surrounding a portion of the stem and, be- 
sides, two small singly placed gonothecåe, seated each in the 
proximal part of an adjacent branch. As Nutting”) and Broch3) 
have found that the Coppiniæ, examined by them, contain gonothecae 
of both sexes, Bedot suggests that the single gonothecae found 
in the named Perisiphonia may represent a different sex from those 
in the Coppinia, and Nutting, therefore, no doubt, compares the 
single gonothecae found in the above Cryptolaria-species with 
those found in the Perisiphonia, and thinks that a coppinia may 
appear later. I do not think, however, that Bedot is right in 
his supposition. It is a well-known fact that a Coppinia may often 
1) 86. Pictet (46) regards Hebella cylindrata Markt., H. contorta 
Markt., and H. scandens Bale as identical with H. cylindrica v. Lend., 
and Billard thinks that the same is the case with H. calcarata 
Ag., but be adds the following remark: "Comme Pictet le fait juste- 
ment remarquer on ne pourra étre complétement fixé sur Videntité 
de toutes ces formes que lorsqu'on aura trouvé et comparé leurs 
gonosomes” (11, p. 17). The gonothecae of H. contorta seem to be 
very different from those of H. calcarata and H. cylindrica, tigured 
by Agassiz and Pictet. Their (Pl. V, figs. 16, 17) distal end is 
divided into 4—6 triangular areas, which no doubt correspond to as 
many opercular valves. The gonothecae of H. scanidens Bale (8, E 
XIII, fig. 18) seem to show a similar mere 
nå 
Va 
Va 
5) 45, p. 946. 
%) 47, p 21 pl V. 
7) 45 a. 
8) 13, p. 155. 
