328 University of California Publications in Zoology. [Vol.6 



that is new so far as I am aware Three are vermiform, four 

 end in daisy-like expansions, and the other one is relatively of 

 enormous size and terminates in a set of structures like tentacles 

 I pi. 30, fig. 68). There is a central core in the larger appendage 

 (not shown in the figure) that is surrounded by the tentacles. 

 The four smaller flower-like appendages seem to have a similar 

 st ructure. 



The first foot has a 3-jointed outer ramus with three outer 

 marginal spines, and a 1-jointed inner ramus. The inner ramus 

 of the second foot is 2-jointed. that of the third and fourth feet 

 is 3-jointed (pi. 31, fig. 93) ; the posterior surfaces of the rami are 

 covered with spines of various sizes. The terminal spines of the 

 three posterior pairs of feet are somewhat peculiar in having a 

 row of small holes inside the serrated margin, as shown in plate 

 31, fig. 9!). The fifth feet (pi. 31. fig. 96), are 2-jointed, the 

 end joint with two heavy spines of which the outer one is the 

 shorter. 



Length: 1.6 mm. 



Coloration: A brownish pigment is generally distributed through the 

 body. 



Occurrence: Station 1252, tow at, and vertical from, 310 f., sounding 

 345 r'., July 11, 1906. 



This species is distinct in the shape of the head and thorax, 

 and in the character of the appendages of the anterior maxilliped. 



Scolecithrix angusta n. sp. 



PI. 28, fig. 42; pi. 29, figs. 46, 51; pi. 31, fig. lot. 



Adult female. The head has a long, low crest, and the rost- 

 rum is heavy and stiff; it is somewhat peculiar in the abruptness 

 with which the slender terminal part originates from the heavier 

 basal part (pi. 29, fig. 51). The cephalothorax is 5-segmented. 

 the fourth and fifth segments being separated from each other; 

 the last segment ends in a point and below this is a deep notch 

 i pi. 29. fig. 46). Tlie abdomen is 4-segmented and with the furea 

 is about one-fifth the length of the cephalothorax (pi. 28. fig. 42) ; 

 the genital segment is as long as the second and third together 

 (these are of equal lengths) and about four times as long as the 

 anal segment (pi. 28, fi^'. 46). 



