NO. 1923. DESCRIPTIONS OF PACIFIC ALCYONARIA— NUTTING. 103 



Plate 4. 



Pig. 1. Pennatula brevipenna, natm-al size; la, single leaf X 4.3. 



2. Pennatula longistyla, natural size; 2a, part of leaf X 4.3. 



3. Ptilosarcus brevicaulis, natural size; 3a, single leaf X 4.3. 



Plate 5. 



Fig. 1. Pennatula rubescens, natural size; la, single leaf X 4.3. 



2. Halisceptrum album, natural size; 2a, single leaf X 4.3. 



3. Pennatula inermis, single leaf X 4.3. 



Plate 6. 



Fig. 1. Protoptilum orientate; la, end of colony X 4.3. 



2. Kophobelemnon hispidum, natural size; 2a, single tentacle X 4.3. 



3. Umbellula eloisa, natm-al size; 3a, single tentacle X 4.3. 



4. Baltidna padfica, part of colony X 4.3. 



Plate 7. 



Fig. 1. Thovxirella recta, natural size; la, part of branch X 4.3. 



2. Selicoptilum rigidum, natural size; 2a, part of colony X 4.3. 



3. Trichoptilum spinosum, natural size; 3a, group of polyps X 4.3. 



Plate 8. 



Fig. 1. Plumarella adhxrans, natural size; la, part of branch X 4.3. 

 2. Plumarella spicata, natural size; 2a, part of branch X 4.3. 



Plate 9. 



Fig. 1. Thouarella altemata, natural size; la, part of branch X 4.3, 



2. Primnodendron superbum, natural size; 2a, part of branch X 4.3. 



Plate 10. 



Fig. 1. Acanthogorgiafusca, natural size; la, part of branch X 4.3, 

 2. Thouarella striata, natiiral size; 2a, part of branch X 4.3. 



Plate 11. 



Fig. 1. Muriceides cylindrica, natural size; la, part of branch X 4.3, 



2. Acanthogorgia paradoxa, natural size; 2a, part of branch X 4.3. 



3. Muricella abnormalis, natural size; 3a, part of branch X 4.3. 



Plate 12. 



Fig, 1. Muriceides nigra, natural size; la, part of branch X 4.3, 

 2. Villogorgia brunnea, natural size; 2a, part of branch X 4.3. 



Plate 13. 



Fig. 1. Placogorgia japonica, natural size; la, part of branch X 4.3. 



2. Acis spinifera, natural size; 2a, part of branch X 4.3. 



3. Anthomuricea aberrans, natural size; 3a, part of branch X 4.3. 



Plate 14. 



Fig, 1. Muricella reticulata, natural size; la, part of branch X 4.3. 



2, Callistephanus pacifiais, natural size; 2a, part of branch X 4.3. 



