Abyssopathes lyriformis

Description of the CIDARIS Specimen: THe CIDARIS SPeCIMeN IS LIke THe TYPe IN bOTH THe ~ 45 ° ANgLe MAde beTWeeN THe PINNULATed SeCTION Of CORALLUM ANd THe SUbSTRATe (FIgURe 2 A) ANd IN THe ARRANgeMeNT Of ANd dISTANCe beTWeeN PRIMARY PINNULeS. FOR eXAMPLe, THe LOWeST SeT Of LATeRAL PINNULeS ARe NeARLY OPPOSITe WITH THe ReST ALTeRNATINg UP THe STeM WITH dISTANCeS Of ~ 4 MM beTWeeN eACH ON ONe SIde Of THe STeM, ReSULTINg IN TWO TO THRee PINNULeS PeR 1 CM (FIgURe 2 b). LATeRAL PINNULe deNSITY IS LIke THe TYPe IN THAT 14 PINNULeS CAN be COUNTed PeR 3 CM PROXIMALLY TO 12 PeR 3 CM APICALLY (COUNTINg PINNULeS ON bOTH SIdeS Of THe STeM) (FIgURe 2 b). THRee ROWS Of SPINeS ON LATeRAL PINNULeS CAN be SeeN fROM ONe ASPeCT (FIgURe 2 C) WITH AbOUT THRee TO fOUR SPINeS PeR 1 MM IN eACH ROW. SPINeS ARe TRIANgULAR OR ROUNded, COMPReSSed, ANd 0.01 MM TO 0.03 MM TALL (FIgURe 2 C). ANTeRIOR PINNULeS ARe PReSeNT IN ASSOCIATION WITH MORe THAN HALf Of THe LATeRAL PINNULeS, RANge beTWeeN 0.05 MM ANd 3 MM IN LeNgTH, ANd HAVe eITHeR NONe OR ONe SeCONdARY PINNULe. THe MAXIMUM deNSITY Of THe ANTeRIOR PINNULeS IS 7 PeR 2 CM WHICH IS LeSS THAN THe 13 PeR 2 CM RePORTed fOR THe TYPe (FIgURe 2 A). SPINeS ON ANTeRIOR PINNULeS ARe IRRegULARLY ANgLed, WITH MOST SPINeS eLONgATed ANd INCLINed dISTALLY ANd SOMe LeSS INCLINed / TRIANgULAR, ALL Of WHICH ARe 0.03 MM TO 0.04 MM TALL (FIgURe 2 d).