CONOR and CONOR: LARVAE OF FOUR PORCELLANIDAE 



Mandibles strongly toothed, heavily sclero- 

 tized asymmetrical appendages. 



Maxilla I with unsegmiented endopodite bear- 

 ing three to five terminal setae and a number of 

 fine hairs along anterior margin ; basal endite 

 with eight or nine setae; coxal endite with seven 

 to nine setae. 



Maxilla II with unsegmented endopodite bear- 

 ing eight or nine setae grouped 3, 2, 3-4 pro- 

 gressing distally. Basal endite bilobed: distal 

 lobe with six to eight setae; proximal lobe with 

 six to eight setae. Coxal endite bilobed: distal 

 lobe with three to five setae; proximal lobe with 

 six to nine setae. Scaphognathite with seven 

 long plumose marginal setae and one apical seta 

 on posterior lobe. Numerous fine hairs occur on 

 scaphognathite margin between plumose setae 

 and elsewhere on appendage as figured. 



Maxilliped I biramous. Coxopodite usually 

 with two distal setae. Basipodite usually with 

 nine setae arranged 2, 2, 2, 3 proximal to distal 

 along inner margin. Endopodite four-segment- 

 ed: segment 1 with two or three distal setae, 

 inner margin; segment 2 with three distal setae, 

 inner margin; segment 3 usually with one, some- 

 times two medial setae, and usually three, some- 

 times two or four distal setae, inner margin; 

 segment 4 with seven to nine terminal setae and 

 one long proximal seta, outer margin. Exopo- 

 dite two-segmented with four natatory setae on 

 distal segment. 



Maxilliped II biramous. Coxopodite lacking 

 setae. Basipodite with one medial, two distal 

 setae, inner margin. Endopodite four-segment- 

 ed: segment 1 with two or three distal setae, 

 inner margin; segment 2 with two distal setae, 

 inner margin; segment 3 with one medial and 

 one or two distal setae, inner margin; segment 

 4 with five or six terminal and one proximal seta, 

 outer margin. Exopodite two-segmented with 

 four terminal natatory setae. 



Maxilliped III present as small bilobed bud 

 which increases in size during the stage. 



Pereiopod buds numbering five pairs, simple; 

 none chelate; buds increase in size throughout 

 stage. 



Abdominal somites five in number; segments 

 4 and 5 with prominent paired ventrolateral 



spines on posterior margin; segments 2 through 

 5 with serrated dorsal posterior margins. 



Telson with seven symmetrically arranged 

 pairs of processes with seventh pair on central 

 prominence. Outer margin to center line: one 

 heavy lateral spine fused with telson; one short, 

 fine seta; five long plumose articulating setae, 

 the outer two armed distally with fixed, curved 

 spines (Figure lA, B); fine hairs on margin 

 of telson (not figured) between all major plu- 

 mose setae and on central prominence. 



Chromatophore pattern same as that de- 

 scribed for prezoea. Rostrum commonly with 

 three bands of red, one terminal and two sub- 

 terminal, occasionally with only one subter- 

 minal band; both posterior spines tipped with 

 red. Carapace 1.31 to 1.56 mm long. 



ZOEA II 



(Figure 11) 



Antennule biramous; exopodite with six or 

 seven terminal processes including three or four 

 aesthetascs and two or three setae followed by 

 five tiers of aesthetascs grouped 2, 3, 3, 4-5, 4-6 

 proceeding proximally. One long seta projects 

 from distal portion of protopodite. 



Antenna biramous; endopodite pointed ter- 

 minally and armed subterminally with one fine 

 seta and two small spines; exopodite unarmed 

 and about two-thirds length of endopodite. 



Mandibles increased in size; prominent palp 

 bud present. 



Maxilla I with unsegmented endopodite bear- 

 ing three or four terminal setae and a group 

 of fine hairs along anterior margin; basal en- 

 dite with 9 or 10 heavy spinous setae; coxal 

 endite with 8 to 11 heavy spinous setae. 



Maxilla II with unsegmented endopodite bear- 

 ing nine setae. Basal endite bilobed: distal and 

 proximal lobes each with 9 to 11 setae. Coxal 

 endite bilobed: distal lobe with four to seven 

 setae; proximal lobe with 10 to 13 setae. Scaph- 

 ognathite with 18 setae on outer margin and 3 

 strong apical setae on posterior lobe. Numerous 

 fine hairs occur on scaphognathite margin be- 

 tween plumose setae and elsewhere on appendage 

 as figured. 



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