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(fig, b2h) situated lateral and slightly posterior to antenna base, 

 consisting of short, heavUy sclerotized, dagger-shaped projection and 

 3 nodules, 2 at base of projection, third slightly posterior, each with 

 several hairlike processes. Postoral process (fig. 52A,) large, heavily 

 sclerotized, spinelike. Maxillule (fig. 52/^) nodular, situated adjacent 

 to inner proximal surface of postoral process, with 3 setules distally. 

 Maxilla (fig. 32 i) 2-segmented, situated slightly lateral and posterior 

 to postoral process. First segment approximately four-fifths the 

 length of second, second elongate, with narrow, frilled membrane 

 on medial inner siu"face, with 2 saber-shaped terminal processes. 

 Innermost terminal process approximately 1^ times the length of 

 outermost, both with fine membranes along inner and outer margins. 



MaxHliped (fig. b2j) 2-segmented, situated medial and posterior 

 to maxilla base. First segment strongly developed, with narrow, 

 heavily sclerotized, strongly curved proximal articulation and muscle 

 attachment sm'face. Second segment indistinctly separable from 

 clawlike terminal process, with single, small, setule-like accessory 

 process from distal inner sm^face. Sternal furca (fig. b2k) situated 

 between and slightly posterior to maxilliped bases, tines broad, 

 parallel, terminating in rounded surface. Furca associated with 

 platelike area of heavy sclerotization extending posteriorly almost 

 to interpodal plate of first thoracic legs and extending laterally past 

 line running along longitudinal axis of body, through region of 

 attachment of maxilliped bases. 



Fourth thoracic leg uniramous, poorly developed, similar, in seg- 

 ment constitution, to that of caligids in last chalimus stages. For 

 nature of legs and armature, see figure 53 and table 19. 



Table 19. — Armature of thoracic legs I-IV of the female of Caligus pelamydis 



Kr^yer, 1863 



♦Segmentation of this leg in doubt: protopodite and first segment of exopodite recognizable, others ques- 

 tionable. 



Figure S3. — Caligus pelamydis Kr0yer, 1863, female, right thoracic legs, anterior view: 

 a, first; b, distal end of second segmentof exopodite of first; f, second; d, third; e, exopodite 

 of third;/, fourth; g, exopodite of fourth. 



