648 Memoirs of the Indian Museum. [Voi,. V, 



Family MALDANIDAE. 



Euclymene annandalei, sp. nov. 



(Plates XXVIII, figs. 22A-G, and XXIX, figs. 22H-K.) 



This species is represented by numerous specimens, collected at 11 stations, 

 all in the south-western end of the Chilka Lake. Apparently they live in tubes, but 

 these are so brittle that only a few fragments remain, composed of sand grains. The 

 body varies from 40-80 mm. in length, and each complete individual is, without 

 exception, composed of the head, buccal segment (achaetous), 21 setigerous segments, 

 2 posterior achaetous segments, a funnel-shaped ring, and the caudal ring. 



The preserved specimens are almost colourless, except for the ocelli. Epidermal 

 glands were diffusely scattered on the head and anterior segment (fig. 22A). On the 

 ist, 2nd and 3rd setigerous segments there is a narrow ring of glands in the anterior 

 part, in front of the setae, the 3rd also having scattered glands over the whole skin. 

 The 4th setigerous segment has bands of glands in front of and behind the setae. 

 In the 5th-8th setigerous segments the epidermis in front of the setae is thickly 

 covered with glands, as well as the parapodial pads. In the subsequent segments 

 there is a strong longitudinal mid-dorsal band of glands and the parapodial pads are 

 thinly covered. There are also narrow diffuse longitudinal bands running in^the line 

 of the dorsal setae. Beginning in the 7th setigerous segment there is a conspicuous 

 double band of glands on the mid-ventral surface, lying over the ventral nserve-cord, 

 and running back to the caudal ring. 



The head (figs. 22A-C) has a large and concave dorsal cephalic plate. The 

 frontal process is fairly large and rounded. The sides are thin and broad, divided 

 by indentations into two lateral smooth areas with entire borders, and a posterior 

 (dorsal) crenate portion of eight rounded lobes. The nuchal grooves are rather 

 long, almost parallel, and are separated by a narrow high keel. On the tip of the 

 ventral side of the prostomium (fig. 22D), in front of the mouth, are 4 elongate 

 patches of very numerous reddish-brown ocelli. The two median patches lie partly 

 under the frontal process, and in some cases are fused in the median line. The two 

 other patches are more lateral in position. The proboscis is partly extruded in 

 several specimens. Its proximal portion is covered with low conical papillae, which 

 are largest near the mouth, and the distal region is smooth. 



The buccal segment and prostomium combined are rather longer than the ist 

 setigerous segment. Setigerous segments 1-6 are approximately equal in length, the 

 proportions varying greatly in different individuals, according to the degree of con- 

 traction. The 7th setigerous segment is rather longer, and the 8th is the shortest of 

 all. The following segments are considerably longer, diminishing a little towards the 

 tail, the last setigerous segment — the 21st — being rather short. Then follow two 

 achaetous segments, the second of which is very short. The latter is prolonged into 

 a bell-shaped ring, which has no parapodial pads. The caudal segment is funnel- 

 shaped (figs. 22E-F), with a deep posterior depression, at the bottom of which lies 

 the anal cone. The height of the latter varies according to the degree of contraction 



