Vou.2] Ksterly—Copepoda of the San Diego Region. 119 
(4 Gxraspinrsantennea ony te hte Sid es o> trey ieqie +o lislereiss)aiste)<' <i s.6 15 
(4 Graspinc antenna somwletbesider 7s cyeeeseriies saucer sbole suche cle eres eeenets' «)< 7 
15. Inner rami of both feet of fifth pair 3-jointed, with plumose 
LORSIISIPIGSISe Tica 2 NOOR eleor olen. cin ec HE Oia c ODES Oo DRIOiC Ee Dio. coe bias 16 
15. Inner rami rudimentary, without plumose bristles ............ Isiasé 
16. Inner rami of feet of fifth pair unlike, the right foot with a 
ORCOTSM, sclera tes tole ons arte ee tak wale Giscss atsmerneersteretat terene rane *Centropagess 
HG Heimie re reaman yallalkseiseiti og, Gry alld eet yoneteyovetemen steer eet elicate) okaltel *Augaptiluss 
Pe Bommramivoteach toog on fib he palces-fOUNTed erp utemiletnake lel: 18 
17. Both outer rami 3-jointed, the inner rudimentary........ * Arietellust 
17. Rami of left fifth foot 3-jointed, of the right 2-jointed.. *Lucicutiat 
18. Inner ramus of maxilla present, distal bristles of anterior max- 
iiped makedwor: Set. wathespIMesise-ss ct ct sale ele) ole soicin =i Haloptilusg 
18. Inner ramus of maxilla lacking; distal bristles of anterior max- 
illiped with mushfoom-shaped appendages (cf. fig. 41D) 
Js aD STOIC DOS ORDO OIDIOIRC Oe Oran UID ena CrO CPAs *Augaptiluss 
HOMME TAT AIMS Olea ties tetO Opts] OLMLC Cayepeya ass) ete storey eilelio) cierto) sieliela ciara’ 20 
WG), Toaiaeie WAMU) OEE Taste sto Bommel Seco oéoeoscna600cn0 cco cboncc 25 
1G), IGaiMCie wee aaNOKS) COLE ToISIE stOKONA dleafoMGYCl CounsoacoedoocouabEeoe Eurytemora 
20. Head without dorsal cuticular lenses or lateral hooks............. 2] 
20. Head with one or two pairs of cuticular lenses and hooks on each 
STGIGY, dba oO OIG IOC GEO ENE: Oise es Ot oo notte PRE CHO ROCCE SOO ON eNO 23 
21. Rami of posterior antennae about equal in length....... Parapontella 
PN. WaaaAeIe TATE TaN, IME WOE Geo soo danccoboasoopDcGGooeUaHaeG 22 
22. Abdomen with asymmetrical outgrowths ............... Pontellopsis 
22, Aoclomean charmmeriaGel 5 oo5pcesbaoooudgsboodsaooomuCds 4c Pontellina 
23. Head with two pairs of eye lenses..........:.......-.- Anomalocera 
OS), Wiesel yyairle lohe Chaves jopwle ChE NEMS! G5 ac5ccoccvcouc0 bbe mcononceoor 24 
24. Last two thoracic segments distinct; anterior antennae of female 
24-jointed; terminal portion of grasping antennae of male 
Ee OT ACS cate lane ca son saes one ce eheres emia) «een ial se =) Geka ss aera vaxct™ a rar ate Pontella 
24. Last two thoracic segments fused; anterior antennae of female 
22-jointed; terminal portion of grasping antennae of male 
cleo Ret |g Ine Ein do 4 5 na oie eo On OCI ICI Ivellopsis 
25. Head with one pair of cuticular lenses; fig. 48a.......... *Labidocera 
25. Head without dorsal cuticular lenses .........----.-++++--+-s0: 26 
96. Inner rami of fitth feet jommted....-...-....--4------- *Centropages 
26. Inner rami of fifth feet 1-jointed or absent...............-++--- 27 
27. Second maxilliped longer than the first ...........-++.++--+4-- 28 
27. Second maxilliped shorter than the first ........--++-.+++e+e0-- 29 
28. Furea long and narrow, at least six times as long as broad... . Temora 
29. First joint of maxillipeds with few short bristles; fig. 47h. .*Candacia 
29. This joint bearing long bristles set with spines............+++-- 30 
30. Outer ramus of posterior antennae less than half as long as the 
TMP. TATE; sovodescocodeponasoopeeneugcacsnasuooducT * Acartia 
30. Outer ramus more than half as long as the inner...........+--- 31 
31. Posterior maxilliped 6- 7- jointed...........+.++2++--+e-- Calanopia 
31. Posterior maxilliped 3-jointed ..........-2.+eeee eee recess Tortanus 
39. Both feet of fifth pair with inner.rami, which are 2- or 3- jointed, 
bristles. plumose ....... 6. ee eee eet e eect eee nett eens *Lucicutia 
