208 IOWA STUDIES IN NATURAL HISTORY 
ing ridges on the dorsal surface of the dise and also a central de- 
pressed area. This form superficially resembles the West Indian 
Astrocnida described by Lyman, but is without terminal branch- 
ings to the rays and differs in several other respects, such as in 
the absence on the dise of the stumpy spines so characteristic of 
that genus. 
Another simple-armed basket-fish has the same color as the last 
but doubtless is generically distinct although resembling it in 
having unbranched arms. The dise however has very prominent 
radial shields, the color is a uniform light reddish brown all over 
and the tentacle scales are much more prominent. It was found 
on a branch of an antipatharian coral. But in spite of the un- 
branched condition, these forms are really basket-fish and belong 
to one of the genera described by Lyman as ineluded in the family 
Astrophytide. By far the majority of these simple-armed forms 
were first described from the West Indies. Since then a number 
have been secured from the Pacific and several in the Dutch East 
Indies by the Siboga Expedition and reported by René Koehler. 
Two specimens of free or sessile crinoids were taken from a 
depth of twenty-eight fathoms. One of them is a very handsome 
red specimen which came through intact, but I dare not take the 
chance of its going to pieces in an attempt to remove it from the 
bottle so I will leave it for a specialist to examine. 
Few worms were taken during the cruise on the trawler, but 
large masses of worm tubes were found on Rakino Island belong- 
ing to a form allied to Serpula vermicularis, also one belonging to 
the family Cerratulide and a couple of Nerevs-like species. 
As already mentioned, great numbers of handsome, red brachi- 
opods were brought up in the trawl when working over ground 
covered with Pecten shells. Some individuals were as much as 
one and half inches long and one and a quarter inches wide, the 
largest living members I have seen of the order. It probably be- 
longs to the genus Magellania, figured and described in Parker 
& Haswell’s Textbook of Zoology, Vol. 1, pp. 360-366. These 
authors say that this species (M. lenticularis) is found in great 
numbers at moderate depth off the coast of New Zealand. Our 
specimens agreed very well with the figures given in that work. 
One Pecten valve bears on its inner surface about twenty of these 
beautiful brachiopods in various stages of development. The 
larger specimens are very well adapted for laboratory purposes 
as they furnish a study of a typical brachiopod, the large lopho- 
