139 
Le vi nsen has specimens, which appear to be branched; and it is 
well known that many sponges may assume both the erect and 
the incrusting form. I do not think, that the discrepancies are great 
t^ig.18. Esperom normani, Bow. a, styli; b, chelae. Fig. 19. Esperiopsis crasso- 
f fibrosuy nov. sp. a, styli ; b, c, chelae. 
I 
t 
enough to justify the creating of a new species or even a variety. 
The sponge is hitherto only known from the north part of the 
Atlantic ocean; it therefore is very interesting to encounter the 
>pecies here — if it is not a converging type! 
Esperiopsis cvassoffibrosa nov. spec. 
Port Ross. Ca. 10 f. Sand, algae. 25/11.1914. 
Incrusting on a shell. 3—4 mm thick. Dermal-membrane macer- 
ded off. Both subdermal-cavities as well as ostia have probably 
