236' EDWARD PHELPS ALUS, JUN. 



Vetter's ilesciiptions. end. Eiidclynipliatic pore. es. Eyestalk. eye. Eje. 

 gc. Ciliary ganglion, gl. Nerviis glossopharyiigeus or iis loramen. hf. 

 Ramus byoideus facialis, hmc. Hyomaiidibular lateral canal. HMD. Hyo- 

 mandibular cartilage, hnif. Truncus liyoideo-niandibularis facialis. Im. 

 Intermandibularis. ioc. infra-orbital lateral canal. Uc. Lateral line canal. 

 M. Meckel's cartilage, m. Mouth, mda. Mandibular group of ampullse or 

 llieir tubes and pores, mdc. Mandibular lateral canal, mdt. Ramus man- 

 dibularis trigemini. mef. Ramus mandibularis externus facialis, mlc. Man- 

 dibular labial cartilage, mxt. Ramus maxillaris trigemini. na. Nasal aperture. 

 ?ic. Nasal capsule, o. Nervus opticus or its foramen, ocm. Nervus oculoiiio- 

 torius or its foramen, ocmi. Inferior branch of nervus oculomoiorius. one. 

 Orbito-nasal canal, opad. Deep group of ophthalmic ampullse. opas. Super- 

 ficial group of ophthalmic ampullse. opas^'^. Three sub-groups of pores and 

 tubes of superficial ophthalmic ampullae, opp. Ramus ophthalmicus profundus 

 or its foramen, oppc. Ophtlialmicus profundus canal. Ops. Ramus ophthal- 

 micus superQcialis or its foramen. Oi. Obliquus superior, oif. Ramus oticus 

 facialis, pcafr. Foramen of posterior carotid artery, pf. Ramus palatinus 

 facialis. FQ. Palato-quadrate cartilage, soc. supra-orbital lateral canal. 

 s]pr. Spiracle, s&o. Surface sense-organs, sic. Supra-temporal cross com- 

 missure. tAdd^. Tendon of muscle AddjS. tffr. Trigemino-facial foramen, 

 tr. Nervus trochlearis or its foramen, nlca. Anterior upper labial cartilage. 

 ulcp. Posterior upper labial cartilage, x. Eoramen which probably transmits 

 the general cutaneous component of the ramus ophthalmicus superficiaiis. 



