11 
THE VOYAGE OF H.M.S. CHALLENGER. 
accomplished and energetic young naturalist ^ was a serious blow to the zoological stafl' 
of the Expedition. 
Mr. Murray forwarded eight pages of sketches and notes made by Dr. v. Willemoes- 
Suhm. The first refers to a Nematoid parasite in a prawn procured on February 24, 1874 
(Antarctic Ocean), in 150 fathoms, apparently very similar to one found in a prawn in 
Shetland many years ago, and forwarded to Dr. Cobbold. The second is an Eteone 
(probably new) from the Spanish coast. Station L, lat. 41° 58' N., long. 9° 42' W., in 1125 
fathoms. The third is termed by Dr. v. Willemoes-Suhm a Syllidean, but it also approaches 
the Alciopidse in the structure of the feet. The fourth sketch enables me to supplement 
the description of Dalhousia atlantica (p. 186), and to correct the remark that there is no 
median tentacle. Dr. v. Willemoes-Suhm did not attach any name to this form, but there 
can be no doubt it is the same specimen. In the fresh animal the elevated areas of the 
head do not seem to be so prominent, and Dr. v. Willemoes-Suhm figures the crescentic 
pigment-mass on each side as the posterior pair of eyes, while the smaller pair behind the 
large anterior eyes are not shown. In his view of the foot a long slender ventral cirrus 
is indicated, this being absent in the preparation. His figure of a ventral bristle is quite 
recognisable, and he adds a wing or guard in the fresh specimen at the tip. Moreover, the 
drawing of the pharyngeal region and stomach is characteristic, no armature, as already 
stated, being present. The tail terminates somewhat bluntly, has two median slender cirri, 
and two lateral jointed processes, thus agreeing with the arrangement at the anterior end. 
It is satisfactory that the further information derived from the sketches of the lamented 
naturalist does not alter in any material respect the position assigned to this novel form. 
The fifth sheet represents a pen and ink sketch of the peculiar Trophonia ivyvillei 
(p. 366) of the natural size, and one of its bristles, under the term “ Annelide aus der 
Ophelien-Familie,” while it is further stated “ Fuss-stummeln und Kiemen fehlen 
ganzlich.” It is not remarkable that this form should have given rise to ambiguity. 
The sixth series of sketches are connected with Mynochele from Station 20 (p. 410). 
Dr. V. Willemoes-Suhm termed the form Myriochele abyssorum, “ n. sp.,” but as his figure 
of the hook is not minutely accurate enough for satisfactory comparison, and the figure 
of the body of the animal shows no new feature, the decision that it is Myriochele 
lieeri, Malmgren, is perhaps at present prudent. 
The seventh plate represents a Protula from “ 600 fathoms,” Cape St. Vincent, 
Portugal. It is uncertain whether this be Protula lusitanica, from Station II., 470 
fathoms, or another form. All Dr. Willemoes-Suhm states is that -it is a “ Serpuloid.” 
The eighth and last sheet gives an imperfect sketch of Hydroplianes, procured on August 
20, 1873, off St. Paul’s Eocks. From the partial outline with pen and ink this seems 
^ For an interesting memorial of E. von Willemoes-Suhm, Ph.D., vide Challenger Briefe an C. Th. E. von 
Siehold ; Nach dem Tode des Verfassers herausgegehen von seiner Mutter. Leipzig, 1877, and also the Narr. Chall. 
Exp., vol. i. p. 769, 1885. 
