6o4 Memoirs of the Indian Museum. [Vol. V, 



and the ventral surface of the head and body are colourless. The posterior dorsa 

 tentacular cirri are stout at the base, and are twice as long as the anterior dorsal 

 pair, three or four times as long as the posterior ventral pair. 



The proboscis is only partially protruded in one specimen, showing the basal or 

 oral ring (fig. 6b). In the dorsal region there is a group of 7 papillae; 3 median 

 of which the largest is in front, the smallest behind ; and lateral groups of 2 papillae 

 on each side. These papillae may represent groups V and VI, or group V only. The 

 three anterior papillae are seated on large hemispherical bases. Ventrally and laterally, 

 in groups VII and VIII, there is a ring of papillae in two rows, 9 in each row, those in the 

 anterior row being the largest and the lateral ones larger than the ventral. The dis- 

 tal, or maxillary ring had to be dissected, and as the proboscis is small, and the 

 papillae soft, inconspicuous and crushed, their numbers and arrangement can only 

 be stated approximately. Group I consists of about 12 papillae of different sizes, 

 II of a small number of larger and more conical papillae. Ventrally are indistinct 

 groups of very large conical papillae, which may represent two groups on IV, or pos- 

 sibly three groups on III and IV. 



The jaws are of a pale amber colour, with numerous small teeth, 18-20 in num- 

 ber in one specimen, only 10 in another. 



In the ist and 2nd pairs of feet, the dorsal setigerous division is represented only 

 by the dorsal cirrus. 



Above the ventral setigerous region (fig. 6c, and text-fig. 10a) is a clavate lobe 

 representing either the dorsal or the median ligule. The dorsal and ventral cirri are 

 short, stout, and conical. In the ventral setigerous division there are three lobes, 

 two slender ones in front, and a posterior foliate lobe. The setigerous fillet curves 

 right round the two anterior lobes, projecting outwards to form the posterior lobe 

 behind, and a small papilla in front, pierced by the black spine. Two kinds of setae 

 are present, both having homogomph shafts. At the front of the foot are two small 

 groups of setae, above and below the spine, with short smooth terminal pieces 

 (fig. 6m), rounded at the tip. The remaining setae have relatively long tapering ter- 

 minal pieces with very long slender teeth on the lower half (fig. 6l). In the 2nd 

 foot the upper ligule is nearly as large as the dorsal cirrus, and the line of setae is 

 continuous behind the anterior lobes. 



In the 3rd foot the dorsal setigerous lobe appears. Between the dorsal cirrus 

 and the ventral setigerous lobe are the dorsal and median ligules, and a setigerous 

 fillet lying in front of and just above the median ligule. There are three homogomph 

 setae, having slender terminal pieces with long serrations, as in the ventral division. 

 The spine lies beneath the setae. 



In the 4th foot (fig. 6d, and text-fig. ioô) the dorsal division has now two lobes 

 between the dorsal cirrus and the median ligule, and the setae are more numerous. 



In the 5th and 6th feet there are three of these dorsal lobes, four in the 7th foot, 

 five in the 8th foot. 



In the 9th foot (fig. 6e, and text-fig. 10c) there are six dorsal lobes. The me- 

 dian ligule is now larger than the dorsal cirrus. The ventral division remains practi- 



