mxEROIDBA 01 WORTH PACIFIC am. MMACKN1 * ■ » 



tllU( .„ ,,. , and Cape Lisbume). The spine mark, 



while thai labeled - is the firel subambulacral. 



^actinal papulae ar, ed in irregular ti ■ rows between the trans- 



ranged groups of spines. There i itudinal supramargu 



SSJSS andanactinal, the latter e, alf the length ol rjy. 



Although the marginal and abactinal areas are ' lativelj »" l>»l>"'"<' 



,,, an area one to three in the intennarginals. 



I.,,,., straighl pedicellaria. cur verj sparingly in the nitennarginal channe 



and m the actinal interradial channels, and o dly oil the lateral portions ol 



the abactinal area. These are compre I and thin, lanceolate acn en from 



Z side, and the jaws are narrow as vie I from the 1 h. tq. arecurved « 



,,„„, and crossed; or one jav, is notched for the acute opp 



?otd" large s, i ns, and, if at all in small in the axulary channe so, ,v 



Rarely the jau is tridentate. The largest of these pediceUanae measure 0.8 te l - 

 mI11 Smaller but sinularly formed ones are found in clusters on the oral and 

 llfll . n on the proximal furrow spines; and ..ill smaller ones, on the fun- face ol 



,,,1,m ; , :::;;; il I :i^, !1 ri, f n,,.,,,- ,..,„„,,,, i—«. «,* 



dpdes, around the abactinal spin,,, and form dense wreaths encircling ******* 

 and actinal spin,, (not half-wreaths . and clusters on the outer srie of h, adam- 



la,ral pineV 1.-. some speci us the furro. spines are practocaUy «Mp^ 



,,llan Ration 3252) while in others from the same locality small •*»<»« 



Zen, l„ alcohoUc specimens the pediceUariae are much more conspicuous than , ... 

 dSd examples, and the marginal d» e often in contacl tally cbstaUy 



When the abactinal spines arc very small, as they sometimes axe, especially ... small 

 arctic examples, they are difficult to differentiate from the pediceUanae, so that the 



1 nnal surface I- the appearance of being c red with b multitude o smaU 



apmdets, as it Eenrida. The dorsal pedicellari t large examples asure 0.21 



or 022 mm. station 3252 to 0.25 mm. [station 3 01 



Madreporic bod 3 fairlj large, a little more than one-haU t from center, and 

 partly or completely encircled by spinel 

 1 Variations The extren es ol variation include an arrangement .-Mho abactmal 



.a^,,,- /,,-'■'<•.' "ontheonehan ,. ..' 



on the other. There are nm 9 which if considered as u»Uted c 



might be classified as al errant exampleeof either enbrana or of grot nlamc u a I hi 

 •"'• the intermediates fom ., llM uMKn,s,i^n, 



PUteS.Pig 1.1. I 2, 2a; Hate 21, Fig U I; Fl 



The chief variations of forma cribra, concern chieflj the 



Qumberi ^ spacing of the abactinal spinelets, and the relative «££«*£ 

 which aVe slender, clavate, or subcapitate; the robustness of the abactmal pi 



, ,,.. , big of the transverse ridges (for instance the number in the proximal 



,;;,; of A e ny ^ ! the number of superomarginal spines; the robustness o themai 

 and actinal spines; the abundant f pediceUanae, both crossed and straight. 



