A Review of the Genus Eunice - Smithsonian Institution Libraries

SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
articulations; prostomial lobes frontally truncate; prostomial lobes dorsally
inflated
47
Length of antennae increasing from A-I to A-III; pcristomial cirri articulated;
prostomial lobes frontally rounded; prostomial lobes dorsally flattened . .
atlantica and indica
47(46). Antennae in a horseshoe; peristomial cirri tapering; neuroaciculae emerging
dorsal to parapodial midline; narrow tips of ventral cirri tapering
cedroensis
Antennae in a transverse row; peristomial cirri medially inflated; neuroaciculae
emerging at parapodial midline; narrow lips of ventral cirri digiliform
americana
48(45). Neuroaciculae emerging at parapodial midline; posterior ventral cirri without
basal inflation; anterior notopodial cirri tapering; prostomium about as long
as peristomium 49
Aciculae emerging dorsal to midline; posterior ventral cirri basally inflated;
anterior notopodial cirri digitiform; prostomium distinctly shorter than
peristomium
medicine
49(48). A-I I and III similar in length with A-I shorter; branchiae distinctly shorter than
notopodial cirri; anterior prcsctal lobes follow outline of acicular lobes
closely; narrow tips of ventral cirri digiliform
rubrivittata
Length of antennae increasing from A-I to A-III; branchiae distinctly longer
than notopodial cirri; anterior presctal lobes form low transverse folds;
narrow tips of ventral cirri tapering
arenosa
50(42). Subacicular hooks always single (except for replacements); posterior ventral
cirri without basal inflation; prostomial median sulcus shallow 51
Three or more subacicular hooks in most setigcrs; posterior ventral cirri basally
inflated; prostomial median sulcus invisible dorsally
marovoi
51(50). Eyes present; branchiae distinctly longer than notopodial cirri; ncuroaciculac
emerging dorsal to parapodial midline; anterior notopodial cirri tapering
52
Eyes absent; branchiae about as long as notopodial cirri; neuroaciculae
emerging at parapodial midline; anterior notopodial cirri basally
inflated
eugeniae, new species
52(51). Ceratostyles tapering; anterior postsetal lobes form low transverse folds;
narrow tips of ventral cirri tapering; eyes behind bases of A-I
mucronata
Ceratostyles digitiform; anterior postsetal lobes follow outline of acicular lobes
closely; narrow tips of ventral cirri short and button-shaped; eyes between
bases of A-I and A-II
congesta
53(41). Ceratostyle articulations long or short cylinders [Figure 75f] 54
Ceratostyle articulations moniliform or drop-shaped distally [Figure 115j]
57
All ceratostyle articulations moniliform [Figure 83f] 59
54(53). Subacicular hooks always single (except for replacements) 55
Subacicular hooks paired in most setigers
aucklandica
Three or more subacicular hooks in most setigers 56
55(54). Peristomial cirri articulated; antennae with A-III isolated by a gap; peristomial
cirri tapering; narrow tips of ventral cirri tapering
multicylindri
Peristomial cirri without articulations; antennae with A-I isolated by a gap;
peristomial cirri digitiform; narrow tips of ventral cirri
digiliform
unifrons
56(54). Pectinate setae tapering in both anterior and posterior setigers; prostomial
median sulcus invisible dorsally
vittata
Pectinate setae flaring in both anterior and posterior setigers; prostomial median