Porifera of Friday Harbor — DE Laubenfels 
large size of the spicules; they are doubtless re- 
lated forms. 
Lissodendoryx noxiosa de Laubenfels, 1930 
Fig. 1, Bl 
The specimen thus identified was dredged on 
July 3, 1931, at a depth of 15 m., in Peavine 
Pass; masses aggregating several handfuls came 
up in the dredge. 
The shape is amorphous and the color in life 
a dull yellowish drab. The characteristic un- 
pleasant odor was very much in evidence in life, 
and seemed to be identical with the odor of the 
California specimens to the best of the recol- 
lection of the author. The consistency is softly 
spongy, fragile. The surface is irregularly tu- 
berculate, but otherwise is optically smooth be- 
cause the dermal skeleton is of very fine mesh. 
Rather numerous oscules are scattered about, 
averaging somewhat under 1 cm. apart, and 0.5 
to 1.5 mm. in diameter. 
The endosome is very much like the struc- 
ture of a crumb of bread, the spicules being ar- 
ranged primarily in bunches, but otherwise in a 
somewhat isodictyal reticulation in the masses 
surrounding the numerous gross chambers. The 
special dermal spicules may be described in gen- 
eral as being tylotes, but very frequently there 
is a rounded promulgation at each end, as though 
they were strongyles with a tylote enlargement 
near but not at each end. Others of them have 
one end larger than the other and the smaller 
end somewhat spined. The variety of shapes is 
quite remarkable. The endosomal spicules are 
smooth styles, with here and there what may be 
interpreted as an incipient spine. Only arcuate 
chelas 28/x were in evidence as microscleres. 
This species was described by de Laubenfels 
(1930: 27) from California, where it is very 
abundant, and yet it is doubtful if any Califor- 
nia specimen has attained the very large size of 
the Puget Sound one. Lambe (1894: 121) had a 
Lissodendoryx which he identified as Myxilla 
barentsi Vosmaer, 1885 (p. 27). This was al- 
most certainly the form at present under dis- 
cussion and not the arctic species of Vosmaer. 
Lambe s specimen had as its principal spicules 
styles with small spines on them. Whereas this 
is not common, it is really the case in the Pea- 
vine Pass specimen and various California speci- 
195 
mens also show this tendency. Lambe’s speci- 
men had sigmas, as do the California speci- 
mens. The latter variety has megascleres about 
thirty percent shorter but not thinner than 
those of the Puget Sound sponges. Taken by 
itself alone, this is a trivial difference. The gen- 
eral agreement, and especially the very distinc- 
tive odor render it possible to make the iden- 
tification with noxiosa very confidently. 
Burtonanchora lacunosa (Lambe, 1892) de Lau- 
benfels, 1936^ 
The sponge thus identified was dredged on 
July 3, 1931, in Peavine Pass, at a depth of 15 
m. It is a small subovate mass about 2X3 cm. 
The color in life was fleshy pink, and the con- 
sistency is softly spongy to fragile. The surface, 
otherwise smooth, is rendered irregular by the 
pore areas and oscules mentioned below. There 
is definite evidence of the presence of a special 
dermal layer. The round oscules are nearly 1 
mm. in diameter and are scattered here and 
there more than 1 cm. apart in most places, but 
occasionally as little as 2 mm. apart. Except 
within regions about 2 or 3 mm. from the os- 
cules, the entire surface of the sponge is dotted 
with pore areas each nearly 1 mm. in diameter 
and about 2 mm. apart, center to center. Each 
of these circular areas is a sieve with the pores 
approximately lOOg in diameter, and crowded 
closely together. 
The endosomal structure is between subiso- 
dictyal and confused. The special dermal spicules 
are inequi-ended hastately pointed tornotes, 
about 7 X 220g. The endosomal spicules are 
somewhat spiny styles 12 X 220g. The micro- 
scleres include sigmas 23g long, and isochelas 
slightly longer. The latter are here interpreted 
as being anchorate, but they are far from being 
typical anchorate chelas, verging strongly to- 
wards the arcuate. 
Lambe (1892: 70) described a sponge from 
the vicinity of Vancouver as Myxilla lacunosa , 
which is rather clearly the form under discussion 
but which has one difference, i. e., that the 
principal spicules according to Lambe were not 
spiny. At the same time (p. 71) Lambe records 
another Myxilla which he identifies as being 
rosacea of Lieberkiihn (1859: 521). This second 
specimen has the principal spicules like the Pea- 
