REPORT ON THE ANNELIDA. 
413 
Mij riocliele heeri, Malmgren, var. 
Habitat. — Trawled at Station 325 (in the Atlantic, off the coast of Buenos Ayres), 
March 2, 1876 ; lat. 36° 44' S., long. 46° 16' W.; depth, 2650 fathoms; bottom tem- 
perature 32°'7, surface temperature 70°‘8 ; sea-bottom, blue mud. 
Unfortunately both extremities are absent, so that little can be made out of the 
specimen. It is about 30 mm. in length by l'2mm. in diameter. The hooks, however, 
seem to correspond with those of the examples from Station 20. 
The intestine contains sandy mud with sponge-spicules. 
There is little, considering the differences in the nature of the sea-bottom, to 
distinguish the tube of this form from that dredged at Station 20. The same brownish- 
orange globular Foraminifera, and various other arenaceous forms of the same type, sponge- 
spicules, one or two globular perforated bodies like Foraminifera, and an occasional 
Diatom characterise the exterior, while the chitinons lining is the same. One end of 
the tube is as usual more leathery. 
Myriochele pacijica, n. sp. (PI. XXV a. fig. 15). 
Habitat. — Trawled at Station 272 (in the middle of the Pacific), September 8, 1875; 
lat. 3° 48' S., long. 152° 56' W.; depth, 2600 fathoms ; bottom temperature 35°'l, 
surface temperature 79°'0 ; sea-bottom, Radiolarian ooze. 
This specimen also is fragmentary, neither anterior nor posterior end being present. 
It measures about 90 mm. in length and fully 1 mm. in diameter. 
The ridges for the hooks in this form are large (as in Oivenia), and the hooks differ 
slightly from those of the previous forms in the outline of the teeth and the shoulder 
(PI. XXVa. fig. 15). A margin, however, must be made for variation, since this is a 
much larger form than the preceding. 
All these examples of Myriochele approach each other closely, and the very 
imperfect condition of every specimen makes the diagnosis unsatisfactory. 
The greyish-white contents of the alimentary canal showed numerous Radiolarians. 
The fragments of the tube have a deep brownish colour, and are composed of an 
inner tough layer of glistening chitinons secretion. Externally is a fiocculent brownish 
coat mainly made up of Radiolarians, with a few sponge-spicules here and there. The 
diameter of the tube is about 2 mm. One end is thin and leathery. They are 
accompanied by a few fragments of the tube of a Hyalinoicia. 
The Myriochele danielsseni of Hansen ^ has hooks with the tips somewhat dilated, 
but much less abruptly than in the present form. 
^ Op. cit., p. 42, Taf. vi. figs. 13-15. 
