VI TABLE OF CONTENTS. 



Family Lepadida- — Continued. Page. 

 Section IV. Holoscalpelluni — Continued. 



Group of Scalpellum gorgoninphilum H3 



Scalpellum gorgoniophilum 33 



Group of Scalpellum portoricanum _ . 34 



Scalpellum tritonis - 34 



portoricanum _ 35 



intonsum 36 



longicarinatum 37 



sanctipetrense 39 



gruvelianum 40 



Group of Scalpellum ratlibun;e 40 



Scalpellum rathbunfe 40 



soror 42 



Group of Scalpellum arietinum 43 



Scalpellum arietinum 43 



diceratum 45 



Section V - 47 



Key to species 47 



Group of Scalpellum idioplax 48 



Scalpellum proximum 48 



idioplax 48 



sinuatum . . . : 50 



gracilius 51 



carinatum 53 



perlongum 53 



albatrossianum 54 



Group of Scalpellum auri villii 55 



Scalpellum pentacrinarum 55 



micrum 57 



formosum 58 



gracile 60 



antillarum 61 



semisculptum 62 



aurivillii 64 



incertum - 67 



galapaganum 67 



Section VI, Neoscalpellum 69 



Key to species 69 



Group of Scalpellum dicheloplax 70 



Scalpellum dicheloplax 70 



benthophila 73 



])liantasma 73 



Group of Scalpellum nipponense 73 



Scalpellum nipponense 73 



Group of Scalpellum gruveli 75 



Scalpellum imperfectum 75 



sanctpebarbane 77 



larvale 78 



Genus Oxy naspis 79 



patens 79 



Subfamily Lepadinye 79 



