2l6 



COPEPODA 



the maxillulae differ from those of the mentioned species by 3 setae in the second inner lobe and 8 

 setae in the exopodite. The posterior margin of the maxillae is only slightly convex, and only a few 

 slightly developed amalliform sensory setae in addition to the vermiform one were observed. The 

 maxillipeds are like those of the preceding species, but the amalliform seta of the second basipodite 

 is rather slender, and the endopodite is comparatively elongate. 



In lateral view the second basipodite of the second and third foot has an outer-edge lamina 

 with a prominent distal tooth. 



The first foot has 3 outer segments; the outer spine of the first segment extends somewhat 



beyond the middle of the second segment; in the 

 outer margin of the third segment a distinct glan- 

 dular pore is found near the base. The second pair 

 of legs (text-fig. 68 f) has a large somewhat rounded 

 outer tooth in the first outer segment. The ter- 

 minal seta has about 30 well separated serrations. 

 The posterior surface of Ri II <s? Ill has 6 strong 

 spines, and the anterior one a few shorter ones. 

 The posterior surface has a single row of teeth in 

 the second outer segment and two rows in the third. 

 Indistinct glandular pores are found at the base 

 of Se Re II and Se 3 Re III. The third pair of 

 legs has a well developed inner tooth terminally 

 on the anterior surface of the third basipodite; the 

 third to fifth serration of the terminal spine is 

 shorter than the more proximal and distal ones; the 

 arrangement of the spinules is less developed 

 than in the second pair of legs. The fourth foot 

 has a short clumsy second basipodite without mar- 

 ginal setae outwards; the endopodite has no teeth 

 posteriorly, but has a few on the anterior sur- 

 face of Ri II and III, as in the preceding pairs; 

 a. Head ;< i& b. Rostrum ;< 33. c. Abdomen in dorsal tne exopodite is almost smooth. Well developed 



view X 15- d. Abdomen in lateral view X 15- e. Segments 



vii— x of the antennulae. f. Pes 11 dext. in anterior view, glandular pores are found in Re I as well as ill 



g. Pes V in anterior view X 59- h. Base of spine in posterior Re tt_ IIL The tf/M pair of legs has three rather 

 view X 150. 1. Base of spine in partly anterior view X 59- 



indistinct segments; inwards a small conical pro- 

 cess bearing a short spine and, with a rudimentary hair at the base of the strong outer spine, almost 

 extending to the end of the third abdominal somite; in the distal half the spine is interiorly serrated^ 

 and terminally, a few hairs are found outwards (text-figs 68 g — i). 



The lateral view of the labrum is like that of S. magnus, but the anterior part of the labrum 

 is less produced, and in front of it a smooth, rounded elevation is found. The anterior surface of the 

 labrum (PI. VI fig. 14 a) shows some similarity to that of L. frontalis (PI. VII fig. 7 b). Most anteriorly 



Text-fig. 68. Scottocalamts Thorii n. sp. f?. 



