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spines distinct, sometimes it is hardly visible. In no case have I observed two large upper 

 spines. In the notch, or if it is absent at the place it occupies in other maxillae, three or four 

 very short and delicate hairs are planted. Next follows a slightly protuberant part with 5 or 6 

 pairs of spines and then a second smaller notch. Then about 8 pairs of spines and finally the 

 slightly prominent inferior angle with a brush of rather short spines. 



The outer maxillae have a small but distinct notch between the upper and lower 

 group of spines. 



Of the cirri the first pair is short; the general shape of the segments of this pair 

 is: narrow at the base and broader at the other extremity. The anterior ramus has 8 segments 

 on the right side and 1 2 on the left, the posterior 1 2 and 1 3 respectively. The segments are 

 thickly paved with bristles, which are themselves coarsely and doubly serrated. 



The second cirrus has 17 and 20 segments; the 8 basal segments of the anterior 

 ramus are highly protuberant and thickly clothed with spines ; the posterior ramus has only 5 

 of these basal segments and 1 5 upper segments with the usual structure. 



The third cirrus has 22 and 24 segments: six and five of these are highly protuberant 

 and thickly clothed with spines. 



The fourth cirrus has 23 segments in both rami and the front of the basal segments 

 n(jt protuberant, as is the case in the three preceding pairs. 



The fifth cirrus has 25 — 26, the sixth 23 — 26 segments. 



The caudal appendages are long, reaching as far as the extremity of the eighth 

 segment of the anterior ramus of the sixth cirrus. The number of segments was 23. 



The penis is short, thick at the base, distinctly ringed. 



During the cruise of H.AI. S. "Siboga" this species was observed at the following places: 



Station 225': Reef near Lucipara islands; 8 — 10 November 1899. 17 specimens. 

 Station 250 : Reef near Kur island (to the W. of the Kei islands), December 6 — 7, 1899. 

 I specimen. 



2. Litlwirya conica n. sp. PI. IX, fig. 10 — 12. 



Scutum large, indistinctly beaked and slightly overlapping the tergum; tergum much 

 smaller than the scutum, their tips coming close together; carina triangular, strongly bowed 

 laterally, feebly bowed vertically; rostrum small, as wide as four (or less) of the subjacent scales; 

 latus having the shape of a parallelogram, its base as wide as four of the subjacent .scales. 



Palpi with the tips rounded, conical ; mandibles with not very numerous pectinations 

 between the teeth ; maxillae with the inferior angle hardly prominent ; outer maxillae without 

 notch between upper and lower group of spines. 



The c a p i t u 1 u m as a whole has a conical shape, its rostral and carinal margins being 

 both nearly equally curved. The tip of the scutum reaches as far or slightly farther than that 

 of the tergum, the tip of the carina not extending so high up. 



The scutum (PL IX, fig. \\ A) is considerably larger than the tergum, its occludent 

 margin is bowed and long, its tergal margin is hollowed out, or (in the largest specimen) 



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