66 THE ROYAL SOCIETY OF CANADA 



Genus NECTOBRACHIA, new genus 



Female: Body short, stout, dorso-ventrally compressed. Céphalo- 

 thorax small, fused to the body without any indication of separation 

 and without narrowing. No abdomen or anal laminae. A single 

 small knob present at the posterior end. Eggs large and few in a string. 

 First antennae two-jointed, tipped with setae. Second antennae small, 

 uniramose. First maxillae strongly divided at the tip, without palp. 

 Second maxillae placed ventro-laterally, passing upward at an acute 

 angle with the body; fused for a large portion of the length; bulla 

 single. Maxillipeds with short base, a much narrower second joint 

 and a claw. No thoracic appendages. 



Male: No specimens. 



(Nectobrachia, referring to the joined maxillae.) 



Nectobrachia indivisa, new species 



Pl. VIII, Figs. 110-112 



Female: Body short, stout, dorso-ventrally compressed. Head 

 forming a tapering projection from the anterior end of the body, 

 without any indication of separation or any constriction to form a 

 neck. Body, second maxillae and egg strings of the same length. No 

 carapace. Body nearly rectangular, but slightly broader near the 

 posterior end. A slight swelling posteriorly with a knob attached to 

 the swelling. No abdomen, no anal laminae. Eggs strings the same 

 length as the body and over one-third of its width. . Eggs large, 25 to 

 30 in number, in three longitudinal rows. 



First antennae short, two-jointed; the second joint curved, with a 

 spine on the inner surface ; terminal with five tubercles, three of which 

 bear claw-like spines. Second antennae small, one-jointed, terminat- 

 ing in two spines, one of which is much larger than the other. Mouth 

 tube longer than the antennae and first maxillae. Mandible with inner 

 surface slightly irregular but not toothed. First maxillae terminating 

 in two long tail-like rami, the outer one somewhat curved near the tip, 

 the inner more nearly straight. Second maxillae placed well to the 

 side but still on the ventral surface, passing outward and upward at 

 an acute angle to the body, come together and are fused for two- 

 thirds of their length. Bulla single. Maxillipeds with stout base; 

 second joint much more slender and narrowing suddenly at the distal 

 end ; the terminal claw slightly curved ; a small accessory claw present. 

 There are no body appendages. 



