VAN SYOC ET AL.: SEVEN NEW BARNACLES FROM THE PHILIPPINES 
201 
.C margaretae Van Syoc, Carrison-Stone, Madrona, and Williams sp. nov. 
(Philippines, Verde Island Passage; type host Viminella sp.) 
4— Basis, Carina and rostrum less elongated, less than 3 times height of shell. 
.C pwripiens (Hoek, 1913) 
(Indonesia, Sulawesi, Banda Sea; type host ''Scirpearella gracilis ” = Viminella gracilis) 
5- Basis elongated along axis of host.6 
5- Basis not elongated along axis of host.13 
6- Basis not flat, margins of basis clearly raised above axis of host.7 
6- Basis flat or nearly so.C longibasis (Hiro, 1937) 
(Palau, Koror Island, Iwayama Bay; type host ''Melitodes (?)” = Melithaea sp.) 
7- Paries tightly fused, not disarticulating in 5-6% sodium hypochlorite (bleach).8 
7- Paries not tightly fused, disarticulating in 5-6% sodium hypochlorite (bleach).18 
8- Basis not extended far beyond basal margins of carina or rostrum.9 
8- Basis extended out beyond basal margin of carina, length of basis along host axis beyond cari- 
nal margin about same as width of shell wall excluding the rostrum. 
.C. exothobasis Van Syoc, Carrison-Stone, Madrona, and Williams sp. nov. 
(Philippines, Verde Island Passage; type host Viminella sp. orEllisella sp.) 
9- Basis greater depth at one end than the other end.10 
9- Basis about same depth along entire length. 
.C. willhearsti Van Syoc, Carrison-Stone, Madrona, and Williams sp. nov. 
(Philippines, Verde Island Passage; type host Acabaria sp. or Mop sell a sp. or Melithaea sp.) 
10- Basis greater depth below carina than below rostrum.11 
10- Basis greater depth below rostrum than below carina. 
.C. sabangensis Van Syoc, Carrison-Stone, Madrona, and Williams sp. nov. 
(Philippines, Verde Island Passage, Sabang; type host Acaharia sp.) 
11- Rostmm greatly elongated, width about the same as or greater than all other wall plates com¬ 
bined .C. basicuneata Van Syoc, Carrison-Stone, Madrona, and Williams sp. nov. 
(Philippines, Romblon Island and Verde Island Passage; type host Junceella sp. 
or Ctenocella sp. or Dichote I la sp.) 
11- Rostrum not greatly elongated, basis deeply cupped beneath carina.12 
12- Carina white or light pink.C. acuta (Nilsson-Cantell, 1921) 
(Japan, Goto-Inseln; type host “Acanthogorgie’ - Acanthogorgia) 
12- Carina dark violet.C. mjobergi (Broch, 1916) 
(Australia, Western Australia, Cape Jaubert; type host Echinogorgia) 
13- Basis deeply cupped, not flat.14 
13- Basis not deeply cupped, flat.15 
14- Paries faintly light blue in color, exterior surface smooth, ungrooved. 
.C. scandens (Pilsbry, 1916) (Japan, Honshu, off Ose-Zaki; type host unknown) 
14— Paries white or yellowish in color, exterior surface grooved longitudinally. 
.C. canaliculatus Ren and Liu, 1978 (China, South China Sea; type host “gorgonians”) 
