Sponges of Kaneohe Bay — DE Laubenfels 
Quindesmia new genus 
This genus is assigned to the family Myxill- 
idae, subfamily Grayellinae, genotype Hyme- 
desmia inflata Bowerbank (1874: 245, pi. 
79). The holotype is probably in the British 
Museum of Natural History. This is a genus 
for sponges with special ectosomal acanthox- 
eas and endosomal smooth monaxons echi- 
nated by acanthostyles, but without micro- 
scleres. It is reported only from Great Britain 
and is evidently quite rare. The name is 
arbitrary rather than descriptive. 
Thus it appears that there are now four 
genera in the Grayellinae, of which Naniupi 
is the only one to have microscleres. 
Naniupi ula new species 
Fig. 11 
The holotype of this species is designated 
as spirit-preserved specimen, U. S. National 
Museum, Register Number 22740. It was 
collected January 10, 1948, in Kaneohe Bay, 
at a depth of about 2 meters, growing on 
dead coral. On February 19, 1948, a similar 
specimen was dredged from a depth of about 
50 meters, in the open ocean about 3 kilo- 
meters south of Pearl Harbor, on the oppo 
site side of Oahu from Kaneohe Bay. 
This rather uncommon sponge is a paper- 
thin encrustation, spreading indefinitely lat 
erally. The type specimen came from a colony 
that covered an area about as large as a 
human hand, of very irregular outline due 
to the deeply sculptured mass of dead coral 
on which it grew. The color in life is a dis- 
tinctive vivid carmine-red. The consistency 
is obscured by the extremely thin habitus. 
The surface of Naniupi ula is smooth and 
lipostomous. The ectosome is a well-marked 
dermis, packed with a felted mass of tangen- 
tially arranged acanthoxeas. The endosome 
is dense, with its spicules in some confusion. 
The special dermal acanthoxeas are about 
4 by 110 g. The endosomal megascleres are 
chiefly smooth styles about 4 by 190 g. A 
few of these are pseudoxeas. In the deepest 
portions are a few echinate spicules, acan- 
19 
thostyles 7 by 130 g. The principal or only 
microscleres are abundant, rather typical ar- 
cuate isochelas, 21 g in total length. At least 
in the type specimen a few other spicules 
occur that seem, at first glimpse, to be micro- 
scleres. They are only about 1.5 g thick, 
80 g long, very faintly microspined, and four 
times curved like two S-shaped sigmas end 
to end. There are, however, other similar 
spicules that are nearly straight, and these 
Fig. 11. Naniupi ula, spicules, from a camera 
lucida drawing, X 333. A, dermal acanthoxeas. 
B, endosomal styles. C, echinating acanthostyle. 
D, arcuate isochelas. E, peculiar contort micro- 
sclere. 
latter give evidence of being juvenile forms 
of the dermal acanthoxeas. The much curved 
spicules may be malformed examples of the 
same juvenile sort, but their occurrence is 
noteworthy. As additional specimens are 
found, this type of spicule should be looked 
for. I do not find them in the specimen col- 
lected south of Oahu. 
The species name is derived from the na- 
tive Hawaiian word for red, because of the 
brilliant color of this species. 
Hiattrochota new genus 
This genus is erected in the family Tedanii- 
dae with the following species, Hiattrochota 
protea, as genotype. It should be emphasized 
that this is a genus with smooth strongyles 
as special ectosomal spicules, smooth styles 
as endosomal megascleres, and birotulates or 
amphidiscs among the microscleres, without 
chelas. 
