24
NEW YORK STATE MUSEUM
Figure 2 Diagram of an Eurypterid
| a; Ia-VIa = appendages or legs | o = "larval" median eyes or ocelli |
| Ab = abdomen | om = ocellar mound |
| bl = balancing leg | on = ocular node |
| ca = carapace or head shield | op = operculum or first sternite |
| car = carina or telson | pa = palette |
| Ce = cephalothorax or prosoma | Po = postabdomen or metasoma |
| ch = cherlicerae, Ia, preoral appengdages or mandibles | pp = pentagonal pieces |
| cj = coxa | Pr = preabdomen or mesosoma |
| end = postoral appendages or endognathites | ps, I-VI = caudal or postabdominal segments |
| ep = epimera or pleura of tergite | r = rim |
| ga = genal angle | rh = rhachis |
| gea = genital appendage (female) | s, II-V = sternites |
| gl = glabella | sf = swimming leg |
| gn = gnathobase | t = telson |
| le = lateral or compound eyes | t, I-VI = tergites |
| md = marginal doublure | ta = tubular organs |
| me = metastoma or postoral plate | tl = triangular lobes |
| mo = mouth | va = visual area |
| mp = marginal plate on under side of cephalothorax | wl 1-3 = walking legs |
