OCR Text |
Show 900 MR. F. E. BEDDARD ON THE [Dec. 4, reality a group of 9-11 small circular papillae apparently very like those of A. aspergillum. They are disposed in two slightly curved lines, one in front of and one behind the line of setae. The whole area upon which they are borne is not only raised above the area of tbe surrounding integument, but is slightly different in colour. In one case only the lowest left-hand papillae merely consisted of the raised area without an indication of the separate papilla) upon it. ; . Tbe male pores are very large and conspicuous, the orifice is much wrinkled. There are about fourteen setae between the pores. Dorsal pores are present. The gizzard of this species shows, more plainly than I have observed in other species of the genus, a disposition of the bloodvessels of the gizzard which has been figured and described in other genera. There are about 8 parallel vessels on each side of the gizzard which run from end to end of that organ. In the gizzard-segments also, which are undivided by a septum, two strong lateral blood-vessels run one on each side ; anteriorly each gives off a very strong and much-branched twig to the body-wall. The last heart is in segment xii. The intestine has no cceca. There appear to be three pairs of sperm-sacs in segments x., xi., and xii. Those of the tenth and of the twelfth segments are much smaller than those of the eleventh ; but in every case they nearly or quite meet each other above the oesophagus. In the tenth segment the sperm-sacs sw7ell out below into the sperm-reservoirs, which lodge the anterior pair of vas deferens funnels. These reservoirs are not fused together below though they come into contact. Their dorsal extension must, as it appears to me, be regarded as an anterior pair of sperm-sacs. The spermiducal glands are squarish in outline and occupy segments xvii.-xix. Their duct leaves them as nearly as possible exactly in the middle ; it is quite slender and is curved back upon itself in a horseshoe-like form; there is no terminal sac, the presence of w7hich might possibly be inferred by the large size of the male pore. A moderately large pair of egg-sacs are appended to the front wall of segment xiii. They are transversely elongated. The spermathecce are constituted upon the plan of those of A. stelleri, and occupy the same segments as do the spermathecae of that species. There are in fact in segments vi. and vii. 8 to 10 spermathecae on each side in each segment. Each spermatheca is pear-shaped, lessening gradually in calibre towards the duct; it has a diverticulum of about half its own length which is slender. The diverticulum has the form that has been noted in A. stelleri ; there is a marked constriction between the swollen end of the diverticulum and another swollen region which gradually diminishes in calibre to the duct. Hab. Aring, Kelantan, |